"Too many USPs to list them all... again Design = genial, finish = superb. A little selection of unique selling points: The CAP-GZA Geared Panning Head can be mounted at the bottom, at the top, or if one buys two of them, on both vertical ends. I don't know any other geared head making this possible and so far I used or tried 8 different ones. Don't waste you money on Arca "Swiss" (in fact, it should be Arca France) d4, the Rogeti is so much better. The center markings for the QR-plates are very helpful, even if I have to open the clamp wider. The bottom plate rotates super-smooth, fixing the head on a tripod is a quick thing to do. The vials are more precise than the camera's electronic level. Super-sturdy. The first QR plate compatible with my FLM quick release system - every other plate so far I had to mill to make it fit. Okay, no one will discover the difference of an image made with the help of this head or another geared head. But with this one I get the job done quicker, safer and with more fun. And I simply love it's design."