I've had this mower for 4 years now, and I have yet to finish the first mowing job without having to make a repair/adjustment/trip to the shop.
It throws belts constantly, spring falls off the idler pulley to the transmission, and it won't restart (usually) if I run out of gas or shut it off to take a break. The startup sequence is the most squirrelly and finicky I've ever seen, the frame has bent from glancing off of trees, etc (I mean, after all, it is a zero turn) even though the metal is pretty thick on it. It only seems to last about an hour before something shuts it down, and it takes about two hours to complete a mowing job in my yard (2-3 acres lightly-wooded land).