I bought my first ZTR about 2 months ago, and after a lot of research I bought the Ferris 1500 with 48 inch ICD deck and 20HP Kawa engine. I have 2 acres to mow, and some of it is fairly bumpy, but not too much elevation. The engine is more than powerful enough, and I cut my mow time by one hour. Important to me was the ride as I have a lower back problem. The suspension on the Ferris is good, and I have no problems with the back after mowing with the 1500. Also important to me was having a good dealer, and I found one about 15 miles from my place. I think the list price on the 1500 was around $6500, and he gave me a couple of hundred for my old tractor. As I haven't owned any other ZTR I can't give feedback on other brands, all I know is that I am very happy with the Ferris.