Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Nasty & Crude...Got the Job Done.

All I can say is wear some goggles if your working the ceiling or you'll be running for some water to flush out your eyes. The clear plastic dish is pretty useless for dust control. I supposed it did catch the small debri. Good luck if you are working with anything denser than typical sheet rock. The cutting edges are thin pieces of steel with the sharpness of a butter knife. It got the job done but if your are installing circular speakers in your living room, be prepared to do a lot of clean-up afterwards.