This is the finest sander on the market. Virtually vibration free and no swirl marks. The PC 505 simply floats across the work surface. I actually look forward sanding my projects. I can use it for hours without the fatigue I experience with random orbit sanders and get a much better finish. As another reviewer noted it lacks dust collection. I'm not to impressed with any of the dust collection systems I've seen on other sanders anyway. Buy or build yourself a sanding table, and sand away. This is far and away the best power tool purchase I have ever made.