Very comfortable to me, really do have good grip, some shock absorbsion, fits on ALL 45 frames. I've heard some complaints that they dont fit on the Spyder Frames, but they do.
Clear ones turn yellow and ugly after a while from oxidation, so i advise get black or a color but not clear. On Spyders, and some others, there is a piece that sticks out in the back, because they were originally designed for Autocockers. Screws it comes with are for Autocockers, so you need to use origial screws that the gun came with.
These are not bad. hope that all of you who purchase them like them, because i did.