Summary: When table-tops are the order of the day, it's hard to beat. When the camera gets a little weighty, a ball head can be difficult to adjust in small incraments, but that's where a gear head comes into its own.
Pros: Attaches Firmly, Good Stability, Large Range of Motion, Strong Clamp
Summary: I'm not a video guy by trade but this is a great product. We're using this with a 10 Lbs FLIR camera. It's solid and stable. The ease of use and both the macro and micro adjusts are exactly what we needed. Haven't found anything wrong yet.
Summary: I use this head to support a portable telescope mount and 60mm astrophotography scope. The mount needs to be aligned with the celestial pole while leaning over to peer through a tiny alignment scope in the dark. The smooth action of the adjustment knobs makes quick work of setup and its strength and rigidity allows me to capture pinpoint stars even with 10-20 minute exposures!
Summary: This is a fantastic camera head. I've owned one for 3 years and use it with a large MF film camera (Fuji GX-680III) with heavy glass. If it can handle that, it can handle anything in the 35mm/telephoto range. All actions are smooth and easy to access. The large knobs are rubberized and easy to grip. The knobs each have an outer collar that serves as the axis "quick release" for gross adjustment, and an inner knob for fine adjustment.
Pros: Camera control, Heavy duty construction, Intuitive to use
Summary: I think you need a ball head on some jobs and a geared head only when adjustments are the main job you want the head to perform. I have used this head for about 5 years and have had no trouble at all. This head is not for sports unless your locked on a spot where the action takes place. I put a quick release plate on my LCD projector and I can get the image trued up to the screen very fast using this head.
Summary: This head seemed like a great idea -- great control over positioning the camera. Oil levels for each axis. BUT the geared head is clunky to use. There is a fine adjustment and a gross adjustment. Fine adjustment is easy. The gross adjustment is not particularly intuitive. This might just be a matter of familiarity. But you can find yourself releasing the gross adjustment too quickly and whipping your camera in an unintented way.