Works well enough. First bit broke on me though during the third cut. Lucky this item comes with 2 bits.

Good tool for very a specific job, but after a few outlet/switch holes it was a small price to pay. Takes a little practice to develop the feel for the tool. Counterclockwise cutting only. Be careful with your plastic boxes as this thing can mow right through them if you aren't reading the feedback from the tool well enough. Give yourself a learning curve, get your spiral bit set at the proper depth, and you'll be in love with it in no time. And yes, it's a dust monster but it can still be better than drywall files and saws (say if you are trimming a little drywall lip overhang on a closet or door opening this makes super quick work of that so you can get your casing flush).