After the many highly jubilant reviews a moderate Critical Criticism: Yes, the support is good in principle and does not wobble like the Suntour parallelogram support that I have thrown away disappointed after good 2 years. But it is not that a seatpost in the inside metal rubbing on metal, is delivered without a single gram of fat. Here the manufacturer's QS has failed and I had to break down the new prop to get fat in the interior, so the pitiful squeaking stopped. And I find that the spring is a little too hard, because in my 82 kg body weight of the suspension travel and therefore the damping is lower than I had hoped for it, even at maximum unscrewed screw. But that does not detract from the otherwise good overall result.