The holder is neatly packed (parts against surface damage again in paper packaging) delivered. The instructions are only in English, but consists almost entirely of drawings - whosoever does not understand who would have even with a German guide problems.
Specifically, I have bought the mount for my Benq W1070. Thus was clear to me from the outset that I can dispense with the tilt function, since the projector lens shift has and I can adjust the image in the height without distortion.
For mounting on the projector I had access screws from the junk box; But it would be illusory to believe that a manufacturer for all possibilities the screws can mitliefern (also in the correct length). Since the W1070 is almost a tiny, disappearing the three arms almost under the mounting plate; but it is no problem to adjust the attachment in the focus of the device.
As written in other reviews: The wall plugs supplied are for 8 mm holes and not for 10 mm holes (error in the pattern). If you know the screws before screwing even with some "slip" (eg washing up liquid), sits the ceiling panel bombproof in a few minutes. The screws then disappear, never to return under the cover supplied.
What I liked: The simple installation system. Due to the stable tube (I have the longer used) the cables are run, the two screws holding the bracket slightly compressed tube over it, click. Then _heraus_drehen the screws ready. The same with the beamer - I have the assembly carried out without problems alone.
Nothing is loose, everything stable. So strong that you can with the 15 ° tilt option should rather forget the matter. Minimal corrections are not a problem.