The processing is as in order to designate (Full Metal). Here and there you will find small bumps in the paint. The stablety the adjustable in 3 dimensions bracket is OK. As long as you touch the projector directly it can be adjusted very well and remains stable in its position. Anchoring the base plate is fixed with just 2 screws. Here, a third or even 4 screw would be desirable.
Should adjust the mount to almost any projector, which can be attached individually 4 holding arms and move.