Just an update...I've had this machine for about a year now, I'm at 24 hours and I love it. I changed the oil after the first couple of hours and I blow the deck off after each cut. My battery was dead when I went to start it a few weeks ago but that was because my cheap Harbor Freight trickle charger fried and drained the battery. I bought the mulch kit and now when I get done cutting the grass there is nothing left behind. I'm very satisfied with this purchase.
My son has a ZT series, not sure if it's a 1 or 2, but it's a 54". He just got it last summer (2019) and I used it a lot. It has the triple bag grass catcher and I really liked that. Seems to have plenty of power, maneuverability, and a comfortable ride. The only thing that I found I didn't like was the stiffness of the frame. When he first brought it home and looking at it, seemed to be very heavily constructed. And it is, but it also does not work well on uneven ground. I find that it doesn't float enough and follow the ground contour, so if your ground is not very evenly landscaped, you may not be entirely pleased with the finish cut. That being said, since 1995 I have used a John Deere F710 front mounted mower and it leaves a much nicer looking cut on my lawn. It is getting pretty well beat up. My F710's deck is getting pretty rough and I haven't been able to find a replacement, so change is definetly in our future.My wife really likes the John Deere and it's steering wheel along with the front mounted deck. She hasn't warmed up to the CUb Cadet ZT yet. All of this is my opinion and you may feel different.
LaVern