I use these on a internally cabled Ambient boom pole with either a Sennheiser 416 or an Oktava MK 012.
Great build quality, small and quite light, great handling noise elimination as well. The parts are interchangable if you break a lyre, but they are made of quite sturdy plastic.
I think the only better suspensions on the market as of now are the Cinela ones, but those are more expensive.