I am a growing business and I need some advice from people that run the machines. It seems like every landscaper in my area is running a Walker GHS mower. Are they really as good as they seem or is it just a trend? I have also been looking at Ferris Hydro walk behinds and other various sit down mowers (Encore, Lesco, Ferris) Please let me know if you have any advice or stories that will assist me in my decision. Also, what is the advantage and disadvantge of the seat position on the walker as opposed to the mid mount seat position on most of the other sit downs.