firstly , let I say I get this sander from amazon for about 40 buck less than the sale price offer at local store ; plus free shipping . such a Deal ! this thing work great . Square shape make it easy to get up alongside wall . variable speed dial and lock button allow you to run the thing and put you hand anywhere on the sander . lot of speed and power . Easy on the hand . the dust bag attachment seem to work well , but be anything really dust proof ? I also put this thing upside down in a vise -lrb- with a towel around the vise jaw -rrb- and use it as a stationary sander . and for those who care , it be not make in Taiwan or China by underpaid foreign worker , but in Switzerland . hopefully by well-paid immigrant worker . I be not a contractor , so I haven ` nt torture test this thing , but if you be a homeowner who want to have the kid fight over you tool when you be go , or simply want to have a impressive estate sale , you can not beat this sander . it be way better to buy this baby and have it for life , rather than buy 50 buck sander from the hardware store every few year .