Economic siege but ...

I bought this to replace a genuine seat office chair used for 20 years for a design somewhat similar, on which I could sway me with more than 100 kg.
I did not pay a lot, and the price is not exorbitant; mounting easy enough, just spare parts counted.
Although user since shortly, weaknesses seem to be for that seat, the rose of the feet which, for a statically indeterminate system has too small a diameter, and the axis between seat and rosette, given my weight important.
I count also not sway me back with my kilos because something probably let go, this seat is not made for that; it's just a chair.

I will "consume in moderation" and will modify my review in case ...
For now it works even with the jack, to follow ...