Seat is cool enough, yet it's not as sturdy as it may look. Bearing capacity is around 105kg, which is quite low to be honest, for it means if you're built square and tough, you might want to "take a seat" by slowly sitting.
The seat will rotate, there's nothing to do about it, like it or not that stud below the seat which should lock the seat pad in position will only lock your seat for 2 mins until you move your ass. Literally, it's quite depressing for it causes instability and quite some annoying movement while you're playing.
Not fully sure if it's my article being damaged, but it seems just a very dumb locking mechanism (screw against a threaded tube). I'd rather have had a chair with steps to set for height and so on (which are there to be precise, just so small you wouldn't call them as such) with a more reliable locking mechanism.
I'm not liking its feet too much, as they tend to move on a smooth flooring, though I expected more stability.
It's a stool to sit perfectly straight on it, with different spots to improve.
Price still feels in the right spot (75eur circa).