This thing is very effective. The battery lasts forever and is not too heavy. Might be hard on the wrist but that goes for any nailer. My only complaint is that the mechanism that holds the tension on the nails often slips. So I'm standing on the ladder trying to hold something with one hand and nail it with the other and the loader slips. Lay it down, pull it back, hammer in a nail. slips again. I have contacted Milwaukee but they have not responded. There were a few issues with Milwaukee tools. They have a solid reputation as reliable tools, but they don't lend themselves well to maintenance when you're in trouble.