I have the following defects all even eliminated, additional money and time cost.
1. The built-in level is Scrap (shows the scale completely wrong).
2. The holder shall be screwed with 6 screws of strength 8.8. A large flat TV weighs from 23 and 35 kg (?). Two screws are sufficient if they are secured properly.
3. Without spacers of the Flat TV (in this case Samsung 55 UHD) not usable because the angled power plug still needed 3 cm. If more connections network or HDMI are not arranged on the side, the spacers not rich. There are new longer spacers needed (40 mm).
3. After attaching the 4 points of support to the VESA holes one finds that they do not form a parallel surface to the back wall. To balance you have to inferior washers.
4. The pre-assembled cords (remote control) for two (2) locking lugs have to be adjusted in length to the TV (ok) but the knot at the nose fuse must be located outside of the pull tab. If not, this hooked firmly in the implementation. To the adjustment, there are no hints. The manual is only bad.
5. The many screws for VESA fixings never really fit. Either too long or too short. When buying, make sure that the head is not too high, otherwise the TV is not flat against the wall.
