This sander seems to work much, much better than the Dewalt.  The dust collection seems to be better (not as much dust flying around in the air while using it) and it does not get as hot as the Dewalt.  Also there are not any consumables on this sander  that you're going to have to buy.  With the DeWalt, there is an O-ring that needs replacing every once in while for its dust collection.  Better yet, the base takes either 5 or 8 hole sanding discs.  Much better sander with regard to operation, dust collection, and cost.