I am at the point of purchasing my 3rd Commercial ZTR, even though I only mow my own 7 acres weekly, with my 2017 BIG DOG, 60 inch, Diablo MP, 35 HP Kawasaki, HUSTLER clone. It is top of the line and has absolutely never given me a problem at all @ 330 hours. My other unit is a 2010 Snapper Pro...