I've got a fair amount of turns and such on our lawn that I would HATE a fender mounted control. What I like about the foot control is it drives just like a car, one or 2 hands on the wheel, push the pedal to go faster, release it (slowly) to slow down and stop. Simple, and works like a car. It's really not that heavy to keep holding down - I'd say about like an accelerator in a car. Granted, I've got size 13 feet, so I may have some additional leverage but it's no big deal at all. Reaching around and messing with a fender control I think would get old real quick, especially since I have a fair amount of obstacles and don't do 1 speed all the time. If your land is flat and obstacle free, a fender may work better.
For the cruise control - mine was a little hard to engage in the beginning as well. What I did was simply get at the linkage with a spray can of white lithium grease and it works like butter. I think mine was a little corrosion from being the "display model" at Home Depot which was stored outside.
I really think the CVT will last longer than a hydro. It is a much simpler unit ( head over to Element V Automatic - By General Transmissions to see about it) - it's pretty much a couple pulleys, some belts, and gears all drenched in grease or gear lube. The same stuff car bearings are packed with or the oil that's in a car differential. The Ariens has the RS-800 unit. The only complaint I have on mine is that the revers - forward transition can be a little jerky and it's slow in reverse But I think the slow in reverse is true of all new mowers now.
I take good care of my stuff and don't see a reason this unit won't last 10-15 years as long as you follow the service and replace parts as needed. Heck, my cheap Craftsman 22" is 5 years old and runs strong, no deck rust, and about the only thing I have replied is the drive wheels due to the plastic gears.
Thanks for the advice. I keep bouncing back and forth between the two, but I do feel the Ariens, built by Husqvarna would probably be the longer lasting machine. It's hard to argue with 250+ Great reviews. I also really like the VTwin, I feel it would last longer and power through more than a single cylinder engine. I also agree about the tranny simplicity. Is there a way to change the gear lube at all?