I debated with myself buying it because its use is limited. It only sands and polishes, but it does it nicely. A friend has one so I used it and liked it so much, I bought one. What I like is the control, you can idle this thing right down to nothing. But for $200, yikes. That's how specialized tools are, but I wish I could do more with it. I'll be using it to prep some aluminum pieces for paint and the Roloc discs come in a lot of variations, including wet and dry. I will also be good for gaskets, but I still wonder what else can it be used for?