I was looking to see the chair up close. There was nowhere it was set up, so I went to a store where they had the Kaiser 3 Large in burgundy and the XL in black leather. Anyway, I wanted to see the chair and asked to go somewhere to see it, and they sent me to the dealership where the people (very polite) showed me the chair wrapped in plastic.
I saw that it also has removable fabrics with zippers, and that it has a 2-year warranty on the mechanism, etc., so I bought the XL.
The back of the chair has a carbon-like design, while the black leather one has plain black fabric.
Well, what I will advise is to measure the height of your desk because the chair is a beast. Literally.
The armrests barely fit under mine - It's not an exaggeration to call it a beast when the transportation box weighs 32 kilograms.
When the chair is tied, it's difficult to lift it to move it without pushing it, and if you put it next to another chair, the difference is laughable. I had read about it and didn't believe it, but it's true.
I have it at the lowest height setting and the legs touch the ground okay.
Very good quality construction - I didn't expect it.
I'm quite bothered by the wheels, when it rolls on tiles, you hear a small metallic sound, I will replace them with silicone ones.
The seat is quite firm, meaning my old one was very soft, this one is a bit hard.
It takes patience and calmness to find the right position for the lumbar pillow. A little out, a little up, a little down, a little here, a little there... but if you find it and adjust the backrest tilt - you're set.
It was purchased with an invoice, and at this price, there is no other for comparison.
It's worth it. It needs space, a good desk, and definitely silicone wheels.
**UPDATE** 4 months later.
The summer was particularly hot. Nevertheless, there was no issue, neither from sweat nor from wear. The chair, after daily use and many hours of use (I work from home), is like new. I would buy it again 100%.