The chair offers a high level of customization, much more than the chairs you usually buy as “ergonomic.” The quality of the materials is not the best in the world, but they are good. After a few weeks of use, I can tell you that the first few days, you have to adapt to it and be patient, as your body is not used to sitting in a chair with three main points of support for the spine and with such adaptability in the armrests. Once you have adapted to it, you could say that it doesn't “hurt” to sit as it did before. It feels natural, there is no discomfort. There are no points that feel uncomfortable... unless you have previous physical injuries. The price is expensive or cheap, depending on what you earn.
What I like least is that the ventilated mesh finish gets dirty very easily. The brand does not sell covers or protectors, which could help improve the durability of the chair, as it cannot be cleaned. There is no normal way to clean it if you spill something on it. That's the worst part. For everything else, I would say that I recommend it and recommend buying it.