Sander functions as it should, no complaints so far though it's barely been used. Came without a battery or charger which I didn't realize when I ordered it so not as happy as I would have been. Fortunately I was able to order an impact driver that did cone with those and are swappable so all is good. FYI I am a DIY casual user so can't comment how it would stand up to daily use on a job site.