I really like this thing. The thing, is a festool sander and a festool vacuum. The sander is very much like an angle grinder, but it has velcro sanding disks of different grits and attach to a soft or hard pad. The pièce de résistance is that when you rotate the handle a dust shield rotates and captures most particulates. Even though I wear a respirator, it is nice to greatly minimize all of that pesky fiberglass dust. I have stated to Megan that if there was a tool I would marry it would be this thing.