This thing is built like a tank! There are no wiggles, shakes or vibrations. The hinge joints are much too tight. I had to loosen them somewhat with a HEX KEY WRENCH THAT WAS NOT PROVIDED. The recommended wall screw pilot holes for wood studs are 2 or 3 sizes too small for the screws. The screws are exactly the right size, though. If I had to do it again, I would buy the same size lag screw replacements and washers for them so that I could use a small ratchet wrench instead of a screwdriver. The diagram showing the use of the tilt mechanism lock-down thumbscrew is obviously wrong. There is no 5th hole for it.A TOP SCREW MUST BE REPLACED BY THE THUMBSCREW. Also, use your own washer for the lock-down thumbscrew because A THUMBSCREW WASHER IS NOT PROVIDED.