It's well finished. Nice clear markings for the angle. Very smooth rotation with no play.
The oversized locking knob will be good with cold hands. It tensions the rotation and stops if fully without too much force. Nice matte paint inside. Quite satisfied with the quality. I'm waiting for the M54M reducer for my OTA and the OAG before I can test it out in the field. (The rotator has M54M threads on the bottom that the photos don't show - I took a risk and bought it hoping that was the case)