This is not the chair that you bought, sat down and enjoyed. I've been sitting on it for almost a year, saving 60 thousand for a normal one, from a foreign manufacturer. Saving failed. Height 190, weight 90.
1. Emphasis for the back. For growth, 190 is a failure. The adjustment range is minimal, the screw that presses the stop to the back constantly pops out of the groove. As a result, he raised the emphasis above the limit conceived by the Hong Kong masters, nailed it to the screeds, clamped it tightly. It became more or less tolerable.
2. Back height. For growth, 190 is a failure. The headrest mount was developed by some Hong Kong sadomasochist. The sharp edges dig into the base of the neck through the mesh. I grinded them off with a grinder, the edges of the attachment, and not the base of the neck, and put foam rubber. It became more or less tolerable.
3. "Lamb" adjustment of the headrest - a failure. It did not work out to tighten them with your hands so that the headrest would not walk like a port prostitute. I removed them and tightened them properly with a key for 8.
3. Squeaks like a worn D'Artagnan saddle. I had to disassemble after a month, lubricate all connections. It became more or less tolerable.
4. Seat height. If the backrest is comfortable for a height of less than 190, then it is logical to assume that the seat height is designed for a height of less than 190. But no. I'm sitting and I need to lower the seat down. For those who have a height below 190, you will have to stock up on footrests.
5. The mysterious "ergonomics" of the seat. My long, bony legs are constantly pinched by the edge of the seat. As a result, discomfort and leakage. If you loosen the tension of the seat net as much as possible, it becomes more or less tolerable.
5. The mesh on the back is loosely stretched. It's not adjustable, you end up sitting in a fetal position, with a round back, but with support in the lower back. As a result, along the contour of the back, I pushed the cable between the mesh and the frame. It became more or less tolerable.
6. You won't be able to sit straight. The most direct position of the backrest is designed for the same "leader". Not oblique and not straight. Something mediocre.