It is light and handy, unlike other strongly built sanders. The clamps on the sandpaper need improvement. The length of a standard sandpaper is barley enough to cover the sanding pad. Hence the 1/3-sheet could slip easily off the clamp. One way to resolve the problem is to make the sanding pad half an inch shorter.
I already have one of these and finally wore it out. This model is light enough to use on a prolonged basis where other makes and models are so heavy you can't do much sanding at one time. This was the only place I could find this model so I am very happy to get another one so I can finish my projects! I am even considering ordering another one just to have on hand.