I installed a new oak floor in my living room , I did not want to try my luck on using a pro drum sander so I decided to use a belt sander even if it took more time to do, . I read the posts on amazon so I decided to purchase this sander I just tried it on a scrap 2x12 and it worked like a charm, I will not hesitate refinishing all the floors in the house with it. This unit is quiet and smooth, It will cut like the devil so theirs no daydreaming while using this sander  UPDATE  using this sander for a while and here are a few modifications I made because the bag is nothing more then a advertisement flag and this  sander is out to eat the cord,,,I rolled the cord in a tight roll and  tie wrapped it down,then I used a sum pump hose in place of the bag, had to build it up with tape and a hose clamp tapped an extension cord to the hose , This modification made dust free sanding without fear of sanding the cord