Excerpt: I got this for use on a monopod with Olympus PEN cameras. For most uses, I think that it will be quite good enough. Only real annoyance, as has been mentioned, is that loosening the ball allows the entire assemblage to rotate on the monopod. I disassembled it to see why. See photos.
Excerpt: Will support absurdly heavy loads. Attaching is a bit awkward because when loosened, both ball (top) and socket (bottom) rotate independently, so you can't screw it onto a tripod, then loosen the ball and then easily screw that into camera base. But this is a minor complaint.
Pros: Attaches Firmly, Good Stability, Large Range of Motion, Strong Clamp
Excerpt: I attached this nice little unit to my Sherlock hiking staff and put the knob back on top. I can remove the wooden knob and attach my camera in seconds and then use the 30x zoom with some assurance of a steady hold. Good price, good product.
Pros: Attaches Firmly, Good Stability, Strong Clamp