I cut 7 acres with my Dixion. Koehler 28 hp gas. No problems in six years of use. I replace the blades every other year. My only suggestion would be stay away from the $3,000 - $4,000 box store units. I paid $7500 for mine. Spend the $$ and get a good commercial grade mower with a suspension seat. I cut 7 acres in just over three hours.