Trevor did a great job grinding out all the stumps in my yard. I had two very large Douglas Fir stumps that he meticulously ground out and removed large chunks, including any large roots he could find near the surface. I also had an apple tree stump inside my fenced patio that he was just barely able to squeeze his grinder into, and he was careful not to damage my gate or any of my wife's plants in her herb garden. I would highly recommend Trevor and his company for stump grinding and removal, and I plan to have them out again to remove more stumps in my backyard later this year.