After only a handful of sessions with it, I can report that aquiring this chair has made observing with my Starfield 16 dob a LOT more comfortable and convenient. The design allows for infinite seat-height adjustability along the travel of the frame. It's a bit unstable at the lowest height, but once you know that it's easy to compensate. All my observing is done at remote sites, and removal of the seat for packing is, although a tad inconvenient, necessary for me and makes for efficient use of minimal stowage space in my vehicle.
In a nutshell, a very helpful addition to my rig.