This is a big improvement over the old style rectangular pole sanders. I use it to smooth drywall compound and to deglaze paint on walls. I recommend you remove the sanding disk after each use ( see the product instructions for how to do this). If you leave one on for an extended period, it may cause you to tear up the hook part of the velcro which is bonded to the foam disk. I found this out the hard way, but was able to make a repair with spray adhesive.