this bag do exactly what I expect . it be skinnier than I have imagine , but collect most of the saw dust . specifically , it negate all the dust fly around my garage . it definitely do not catch all the dust , but I think that be more a function of the table saw than the bag . Premium dust collector have some sort of vaccuum suction to pull the dust . this bag rely on the blow out from the saw . the miss dust fall directly under the saw . I think most people will be happy with the bag . those that will not be happy be the hardcore craftsman and someone expect zero dust .