their quality is so so based on my executive chair I bought this year.
the caster broke (cheap plastic), the height adjuster is going out, the chair is not built very well at all.
I spend more time in my chair than most (16-20 hours) but at less than a year, it should last better than this.I have taken good care of it.I saddle soap it once every 2 weeks. I don't lean or abuse it.
I paid 200 for it on sale.
ymmv
Mike