Bought a commercial four ft. walk behind to mow three lawns and it seemed like stupid money way back then. Got about twenty-five years out of it before my body didn't like the pull start any longer. Had I gone the extra couple hundred for an electric start that mower would still be in use today. It was well worth paying the extra cash back then for the commercial grade. It cut so nice, so close to trees, and cut well fertilized twelve inch high grass when it had to. And just never left us hanging. Wish I had thought about how difficult the pull start was to become; definitely would have went for the electric start.
And after reading triple C post the suspension on the seat sounds to be a must add-on even if you are young enough that the bouncing is no big deal.