This machine is easy to set up and use. I teamed it with a new extra protection extension cord - just to be sure. It does an excellent job and has saved me hours of manual labour. For the price I think it is faultless. Bought for private use, not commercial, I have not found any task it cannot tackle. I bought it to gain post holes through solid limestone. It took minutes to drill several holes! The one weak point is that it tells me it has to have oil but does not tell me what oil as there is not even the smallest piece of paper acting as a guide or manual. It would be helpful.
William Myson 
