I am currently using a Toro 50" zero turn on about two acres. Right at seven years old, a few issues in the first year, broke a couple spindles and were replaced under warranty even after the ninety days had passed with some complaining. Since then the usual, annual air filter, spark plug every third, still on original battery although last fall had to throw it on a trickle charge the night before due to slow crank on colder days. $2400.00 seven years ago and thought I would be satisfied if it lasted 10 years so I think it will do that. With the added deck width going from a 36" to the 50" cut mowing time to about one third and consumes less gasoline in the 21 HP Kohler compared to 13 HP B&S over the entire job. I was somewhat P.O.ed at first when opening up and seeing it was built by MTD in CA. I had this conversation with my neighbor when I first got it and said, they must make some money on these compared to an automobile, as it has no doors, fenders, 1/4 panels, radio, bumpers, air bags, glass, emission controls, exhaust system, computers, One cheep seat, no power of course, two pound of paint max. 4 tires that would maybe last 500 miles on the road, no engineering and building of the engine just buy the cheapest from Briggs, Kohler, Honda, Less than 500lbs? compared to 3500lbs Etc, etc. And how about this I have more $$ in my mower than my 85 300D daily driver that get me to work.