Needed a tube sander for a large bike rack sculpture I am making. Many complex curves to navigate. This tool is solid, and very easy to set up, and ran all day without getting hot. The belt tracking is amazing- so good it allows tilting to 45 degrees (with care) to fit into tight corners. The belt provided was very robust and did the rough sanding for my entire project. I was happy to find out that 1" Scotchguard belts work fine and track well too.Downsides? Well, the box is big. And it is really only of use on round tubing. Doesn't work well on square, because it generates a lot of pressure on the edges, and none in the middle. Still better off with an angle grinder for square tube.