Never heard of Workshop Brand. I don't really have any experience with shop vacs other than the Shop Vac brand ones, and even that is limited. My Shop Vac is a 5 gallon from 1997. LOUD thing, but I only really use it for vacuuming out the car and cleaning out the A/C condenser drain line, so it gets very little use. It still looks brand new since I clean it after each use and keep it indoors.
The newest model I used seemed to be much quieter, or at least the noise was lower tone. I notice the newer units seem to be fatter in diameter and lower in height, whereas the older ones were taller and narrower in diameter. Possibly so they won't tip over, the older ones seemed to fall over sometimes.
I remember some of the older Craftsman vacs, there was a cord reel model that was white with white hose, and the TOL model was variable speed and I think had a cord reel also.
Also remember their push-pull power nozzle attachment that worked kind of like a carpet sweeper.