I have two shop vacs, a Craftsman I use in the garage and a Fine, that was given to me, in my shop. Both work good, but the Fine is much quieter.
Besides using the Fine for general cleaning it's hooked up to my scroll saw and it turns on automatically when I turn the saw on and then runs for about 3 seconds after i turn the saw off.
If your buying, on a budget, I'd recommend the Craftsman. I've had mine for several and has always done a good job and the replacement filters are readily available.