I bought my 54" Raptor SD a few months back and finally got to use it this past weekend. My last .4 acre yard I cut with a push mower, but we just moved to a new place with 3 1/4 acres. I have no previous experience on a ZTR. Having said that, I thoroughly enjoyed using the raptor. I cut my lawn in 1.8 hours according to the meter. Its a level lot with nearly a dozen trees. By the end of summer i'm sure I'll knock more than a few minutes off that time as I grow faster on the turns and establish a pattern. The mower "felt" as quality as it looks, was very easy to operate once I got the hang of it, and did a beautiful job. I really like how the Kawi engine fires right up with no effort. So far no complaints!
I'd like to build a stripe kit for it in the coming weeks, but that's a whole other topic..
P.S. I came to the Hustler brand by my bro-in-law who runs a lawn service. All his guys run Hustlers and he swears by them.