The chair is well made and really well packaged, it looks very good and generally there are very positive reviews about it BUT. The manufacturer states that the L version is for people with a body height of 150 to 180 cm - I don't believe it, a person who is 150 cm will have legs that swing in the air, the seat of the chair is 46 cm high, I don't understand why the chair is not designed to be lowered even further, it can always be raised. The L version can carry up to 120 kg person, which is great, but we're not in the US, I weigh 70 kg and as far as hardness goes, it looks to me like a wooden seat covered with a thin layer of foam and fabric. No attempt to make the material ergonomically shaped, as is customary with, for example, memory foam mattresses and pillows. Sure, it has to support a lot of weight, but it's totally unsuitable for lighter Europeans, my wife also found it too hard. Reviews, especially video reviews, do not reflect reality. The chair is praised to the skies, but the reality is different, it may be more suitable for a person who weighs 100 kg or more. In my opinion it is not very ergonomic, when I sat in it, it didn't even feel natural to me. For a manufacturer that specialized in making seats for race cars I expected more from the chair, it's definitely not worth the money. But my opinion is subjective and a lot of reviews don't include information about the height and weight of the user and that's wrong because then they are biased. I returned the chair, I didn't even last 2 hours in it, I didn't feel comfortable sitting in the chair, let alone falling asleep in it as the reviews claim (maybe after horse tranquilizers): -D If you're buying and you're smaller in stature, definitely try the chair out somewhere first, or unpack it carefully and keep the packaging materials for the first 14 days to give you the option of returning or exchanging it for another model. Years of experience tell us that the choice of office and gaming chairs is hell and the ideal product never exists. At least I can praise the magnetic pad is, it is very nice and practical.