Wow... I really didn't expect this to be as powerful as it is for the price! Incredible little sander, we're doing a lot of DIY and renovation work at home currently and this has made short work of almost every sanding job we've put it to - having the dust collector at the back really helps to keep the mess under (something approaching) control! if anything this is TOO powerful, as the velcro used to hold the sanding sheets onto the foot of the sander isn't strong enough to keep them in place if you're doing a lot of sanding! Very very pleased.