When I started lampworking, a bottle of Fusion Products bead release came with the kit and that was what I used for a while. It worked well, and suited my needs because I hadn't tried anything else. Once in a while, I would marver a little too vigorously and the bead would come loose and I'd have to be finished whatever I was doing. That was when I remembered someone talking about this blue "dip and go" stuff that was so much better. Nothing I looked at was blue, but there was a product from Milliron Tools called Dip-n-Go Sludge that seemed to fit the bill. It worked very well and suddenly, flakes of bead release on the beads and having to quit real quick weren't a problem anymore. It comes in a wide-mouth jar and is a bit of a pain to mix but is smooth, consistant and reliable. Then a jar of Planet Glass' bead release came with some glass I bought and I had to give it a try.
Would I buy Universal Bead Release? Probably not. I like my standby, even though I wish they'd come out with a different package. That uneven coverage thing and having to dip mandrels more than once is a drag.