I've owned the grader for about 4 years. I bought it after my driveway rock had been down for about 3 years and was looking pretty ragged with several minor to intermediate washouts. The grader was being offered at the time with a 6 month trial, so I decided it would be worth a try.
The driveway is 400+ feet long and the grader, towed by a UTV worked like a dream. I loaded the weight basin with bricks and after about 10 passes, the drive looked like it did when the rock was first put down. No kidding, I was amazed.
Since then I've used it once a year for about 5-7 passes and until this year never had occasion to add additional rock. The scarifiers look new and there have been no frame, mechanism or tire issues. I did have to buy a new battery this spring, but only because I neglected to put it on the charger last fall. There is no cure for dumb.......
I am currently selling the grader, but only because I had asphalt laid this spring. I wish my mowers, which are not from DR, were as reliable.......