I tested several other zero turn models before buying this one. I don't mow commercially, but wanted a unit that would last a couple of decades without much fuss. This thing mows flawlessly and unbelievably fast on heavy slopes and the usual number of obstacles in my 3-4 acre lawn.
The only complaints I have are it's cold collared behavior after sitting in the cold for several weeks requiring carburetor cleaner priming to start. Starts quickly after that (I have the big block 36 hp briggs engine). Takes only a few minutes to do this if you're wondering. The other complaint is the knuckle busting location of the drain plug and oil filter making oil changes not very easy.