I had an old belt sander but it was too heavy to carry. So I bought this 5.5Amp variable speed belt sander. This one feels comfortable in my hand and is very easy to grip and control. The sander performed perfectly. I polished the entire concrete floor in my condo using nothing but this variable speed belt sander. I have to say that it's really safe as it comes with a little container to collect the dust. This is a great hard-working little tool.