I just took the sander for a test drive on 2 aluminum plates that I use in my vac press. They had some very old glue on them that I've tried to get off with other sanders. The ETS150 did great. It removed the glue, stains and other misc stuff like epoxys and fillers. The sander has very little vibration in my hands and doesn't cause any fatigue what so ever. Also, when I was done sanding I put the ct-33 to the test as well. Aluminum will make a very fine dust. In this case there was no dust on the surounding bench what so ever. When I whiped the aluminum with a rag there was almost no residue on the rag. This is only the initial test. I'll report back when I use it on wood tomorrow.