I got a new Toro ZTR with a heavy, welded deck and love it. Took me about 15 minutes to learn to use it and about 5 minutes of "review" the next 3 or 4 times I used it. No problems now. Where I have good bermuda grass and a smooth surface, I can mow as fast as it can run. In the rougher spots or where there is still a lot of native grasses, I have to go real slow, but it still cuts good. There is one pretty steep slope (more than 15 degrees) where I have to favor one side on steering, but it hasn't tried to turn over on me at all. I have the same handle adjustment problem as Doc, but I kept my manual which has instructions on adjusting it. Just haven't gotten around to it yet.