I was very surprised at the quality of this rotary hammer. I was expecting it to be cheap, but that would be fine because I only had to drill four holes in the garage floor to install the tire changer. I drilled four holes that were 1/2" in diameter and about 2" deep and they were all perfect in under a minute. This hammer drill has a lot of power. However, I used a new Dewalt impact drill, which does not come with this drill. I see complaints about the bits that come out of it, but you can't expect top quality when there are so many that come with a drill at this price point. But they might be ok. I just didn't use them. But there are a lot of them! But the really great thing about this set is the case. I have many blowout cases for Milwaukee and other leading brands but the case this drill comes in is the best I have seen and it is so well organized. I certainly can't say how well the drill will hold up over time, but I'm very happy with what I've seen so far. I understand why this drill has such good reviews and what incredible value for money it is.