At this price, the quality is decent. I installed it with a BenQ W1070 and no problem. A little game in the arms despite tight screws but it holds very well. A valuable tip for all projectors: do not place the holder in the center of the screen but set the same distance from the lamp of the projector from the center (usually between 5cm and 10cm) or you peinerez to obtain a perfectly rectangular image, the trapezium can not generally be corrected only in the vertical direction.