My mower arrived yesterday and I managed to cut approx 1 acre in under an hour. This is my first zero steer and I was going pretty slow. Took a while to get used to but I did manage to trim around approx 15 trees and numerous other items. Great cut on some previous poorly cut long grass. Unbelievable to someone who has only used a regular lawn tractor. So fast I don't think I ever got it up to full speed. Never a sign of bogging down and although it is overkill I love it.