I bought this belt sander to redo my porch. It did its job and never stopped, probably for 6-8 hours of almost non-stop grinding. However, there are some problems: 1) Dust collection is terrible. Dust flies everywhere except at the dust opening. I even connected a shoppyk and nothing helped - the dust flies out in the wrong place in front and on the side. I stopped every 15 minutes and sucked it all up. 2) The belt adjustment is really good, but only because the belt keeps failing. I know this is a fairly common problem with belt sanders, but you'll have to adjust it every few minutes, especially when dust starts to build up in nooks and crannies.