TVman, it does get a lot of the dust on top, but, of course it will not get all. I noticed it doesn't get as much as my big shop vac did, but, i too was tired of the noise and heat. Now, it does keep the btm really clean, there will be no dust hardly at all. All I can say is, I am well pleased with it and if my wife buys her a saw, I will buy another vac for hers.
Tony,aka,Toneman