We bought this for making holes for a new fence. It works pretty well, but stones of any size will make for a hard time. We found the small auger works much better than the larger one due to power, but it's agreed that more power might get someone hurt.
Biggest reason for a 4 star vs 5, is that the throttle cable binds occasionally causing it to continue trying to keep going even after letting go of the handle. A little wd40 at the carburetor, where the cable works the throttle helped improve that downfall. Overall is a good value, and probably better suited for ice or Sandy soil without stones. It starts and runs well, uses little fuel.