I bought this belt sander to replace the Porter-Cable 3 x 21 belt sander Mo. 337 I had bought used over ten years ago.  They are the same except for the dust bag connection port, the way the belt is changed, and the variable speed feature.  This new version does everything well for me and I really appreciate how easy it is to put on a new belt.  On the Mo. 337 I sometimes knocked the floor plate loose because you had to push the sander down against the floor to release the pressure.  The Mo. 352VS picks up about 80% of the dust it generates depending a little on what grit you use.  It's pretty loud as one would expect but is very aggressive and operates flawlessly for hours continuously if you can take it. Except for when I need to level glued up slabs for shelving or cabinetry after biscuit joinery, this tool does it all.  Since I'm an all out person I rarely use the variable feature. For my large slab sanding I prefer my Porter-Cable 12 amp 4 x 24 belt sander which also eats wood but with a greater appetite.