On the recommendation of a landscaper I bought the Toro Timemaster 30" in 2018, and it has given me good service for four years.
Warning: Mechanics know one should never tip a gas lawnmower on the wrong side. Many of the rest of us don't know that. Unlike most people, I did read the entire 33 pages of the manual so I had seen the three places where it instructed to tip the lawn mower with the oil dipstick down (air filter up). None of these three instructions explained why to do it that way, what might happen if you tipped it onto the other side, or gave a dramatic warning - though the manual has pages and pages of other warnings. The machine itself is also stickered with numerous warnings - but none about tipping it on the wrong side. Tipping it on the correct side is a bit counterintuitive because that means tipping the heavy weight onto the side discharge plastic grass chute lid rather than onto the sturdy metal side of the deck.
So, last month when I was tired and rushed I flipped it onto the wrong side to clean out wet grass. Then it wouldn't start again.
It turns out the oil system is not sealed, and when the mower is tipped the wrong way the oil runs into the carburetor, and air filter, and out. After replacing the $20 ruined air filter it still wouldn't start. A few days later, got it going by: removing the spark plug and air filter, filling the carburetor with gasoline to dissolve oil, removing most of that gas using a syringe with tubing, pulling the starter cord to blow fuel out of the cylinder through the spark plug hole, then replacing the spark plug and air filter. By the way, the manual doesn't mention the size but it's a 5/8" spark plug, and fortunately I had that size spark plug socket.
We have a lawn area of 0.4 acre, not large enough to justify a sit-on mower. The Timemaster's wide 30" cutting swath saves a lot of time. With a 223cc Briggs and Stratton engine this model 21199 has the torque to cut long grass, has worked reliably, and on level ground can go as fast as I can walk if the grass isn't too long. Got it from an authorized service dealer where it cost a bit less than at Home Depot though they didn't advertise that fact. If I were buying it again, I'd spend the extra money and get the electric start version; it has to be pulled quite quickly to start up. On the dealer's recommendation I end the mowing season by letting it run dry near the end of the last mow (I use ethanol-free gasoline to protect the hoses) and then finish mowing with a half liter of synthetic gas (TruFuel) and store it without running it dry (Toro recommended running it dry if leaving it unused for a month).
Most of the season I use the side discharge. If the grass is a bit wet and thick, which is often hard to avoid hereabouts, occasionally the side chute will plug up with grass cuttings and has to be cleared. This is easy to notice, because the grass will stop flying out the side. If I fail to notice that it has stopped coming out, the motor will soon tell me by stalling (which, so far, hasn't broken anything, but I don't recommend it).
For transporting in a vehicle I would recommend raising it off the wheels, supporting it on the steel frame, rather than attempting to wedge the wheels (I tried that, and it failed.) At 144 pounds it's heavy for lifting or turning and I use ramps from Canadian Tire to drive it into a storage shed. I do wish it had a more effective muffler; I use hearing protection earmuffs. You can find thousands of review comments about the latest version of the "Timemaster 76cm" (= 30 inch wide cutting swath) at Homedepot. As far as I can tell, the newest version is virtually the same as the version I own.
The Toro "Personal Pace" mechanism is a great assist and provides enough to pull the 144 pound machine on smooth level ground or downhill, but requires quite a bit of pushing when going uphill. Unlike some mowers its self propulsion doesn't use a hydrostatic or V-belt continuously variable transmission. Instead, when walking at less than full speed, for example uphill, it reduces speed by simple slippage of the V-belt. Due to this slippage the V-belt gradually becomes polished shiny and the self propulsion becomes less effective, requiring stronger pushing. Sanding the V-belt with sandpaper restores it. In theory it's a terrible design but in practice it works well. Perhaps that is why my two year warranty on this model was only for usage at a single location and not for all-day commercial usage; in any case I haven't needed any warranty work.
Walking fast at the machine's full speed, approximately 4 mph on flat ground, 0.4 acres in theory would take about 35 minutes, but with the various complications takes about an hour and a quarter in practice. (I used to do an acre with a 21" Honda in 4 hours. Unlike the Toro, it had a positive self propulsion that didn't need any pushing, just steering.)
Overall, have been pleased.

Warning: Mechanics know one should never tip a gas lawnmower on the wrong side. Many of the rest of us don't know that. Unlike most people, I did read the entire 33 pages of the manual so I had seen the three places where it instructed to tip the lawn mower with the oil dipstick down (air filter up). None of these three instructions explained why to do it that way, what might happen if you tipped it onto the other side, or gave a dramatic warning - though the manual has pages and pages of other warnings. The machine itself is also stickered with numerous warnings - but none about tipping it on the wrong side. Tipping it on the correct side is a bit counterintuitive because that means tipping the heavy weight onto the side discharge plastic grass chute lid rather than onto the sturdy metal side of the deck.
So, last month when I was tired and rushed I flipped it onto the wrong side to clean out wet grass. Then it wouldn't start again.
It turns out the oil system is not sealed, and when the mower is tipped the wrong way the oil runs into the carburetor, and air filter, and out. After replacing the $20 ruined air filter it still wouldn't start. A few days later, got it going by: removing the spark plug and air filter, filling the carburetor with gasoline to dissolve oil, removing most of that gas using a syringe with tubing, pulling the starter cord to blow fuel out of the cylinder through the spark plug hole, then replacing the spark plug and air filter. By the way, the manual doesn't mention the size but it's a 5/8" spark plug, and fortunately I had that size spark plug socket.
We have a lawn area of 0.4 acre, not large enough to justify a sit-on mower. The Timemaster's wide 30" cutting swath saves a lot of time. With a 223cc Briggs and Stratton engine this model 21199 has the torque to cut long grass, has worked reliably, and on level ground can go as fast as I can walk if the grass isn't too long. Got it from an authorized service dealer where it cost a bit less than at Home Depot though they didn't advertise that fact. If I were buying it again, I'd spend the extra money and get the electric start version; it has to be pulled quite quickly to start up. On the dealer's recommendation I end the mowing season by letting it run dry near the end of the last mow (I use ethanol-free gasoline to protect the hoses) and then finish mowing with a half liter of synthetic gas (TruFuel) and store it without running it dry (Toro recommended running it dry if leaving it unused for a month).
Most of the season I use the side discharge. If the grass is a bit wet and thick, which is often hard to avoid hereabouts, occasionally the side chute will plug up with grass cuttings and has to be cleared. This is easy to notice, because the grass will stop flying out the side. If I fail to notice that it has stopped coming out, the motor will soon tell me by stalling (which, so far, hasn't broken anything, but I don't recommend it).
For transporting in a vehicle I would recommend raising it off the wheels, supporting it on the steel frame, rather than attempting to wedge the wheels (I tried that, and it failed.) At 144 pounds it's heavy for lifting or turning and I use ramps from Canadian Tire to drive it into a storage shed. I do wish it had a more effective muffler; I use hearing protection earmuffs. You can find thousands of review comments about the latest version of the "Timemaster 76cm" (= 30 inch wide cutting swath) at Homedepot. As far as I can tell, the newest version is virtually the same as the version I own.
The Toro "Personal Pace" mechanism is a great assist and provides enough to pull the 144 pound machine on smooth level ground or downhill, but requires quite a bit of pushing when going uphill. Unlike some mowers its self propulsion doesn't use a hydrostatic or V-belt continuously variable transmission. Instead, when walking at less than full speed, for example uphill, it reduces speed by simple slippage of the V-belt. Due to this slippage the V-belt gradually becomes polished shiny and the self propulsion becomes less effective, requiring stronger pushing. Sanding the V-belt with sandpaper restores it. In theory it's a terrible design but in practice it works well. Perhaps that is why my two year warranty on this model was only for usage at a single location and not for all-day commercial usage; in any case I haven't needed any warranty work.
Walking fast at the machine's full speed, approximately 4 mph on flat ground, 0.4 acres in theory would take about 35 minutes, but with the various complications takes about an hour and a quarter in practice. (I used to do an acre with a 21" Honda in 4 hours. Unlike the Toro, it had a positive self propulsion that didn't need any pushing, just steering.)
Overall, have been pleased.
