this produce exceed my expectation . 1 -rrb- powerful 2 -rrb- very effective dust collection 3 -rrb- much quieter than I expect 4 -rrb- Easy to change belt 5 -rrb- sand belt stay on track I be very happy with this tool . this be simply one of the best tool I own . it help I with my bathroom remodel project in way I do not expect .