I've had the R&R Beadbreaker since just after they came on the market. They struggle with the European alloys due to the bead-retaining ridge- unless you put the rim in a lathe and take the ridge off ;)
I had to make an adaptor for LR rims but I think the later ones have this covered.
They are slow to use because of the screw mechanism as opposed to a lever, but less effort for the same reason and don't need to be mounted to anything.

