The chair is not superior (for sure not comparable to those 600+ ones in terms of build quality and adjustability) but fairly good for its price. Do note that the adjustable lumbar support can only be moved up/down (without tilting the chair) and you cannot actually make it more/less protruding (like what you can do with some car seats)
I bought the chair for my covid19 home office and am angry I did. The chairs arms are very widely space apart which makes it awkward to sit or rest your arms let alone pull your chair into your desk. Additionally the feet are very long and will kick the back of your heels--it's a minor annoyance but an annoyanc e nonetheless. Overall I am very disappointed land wish I would have tried the chair first. For context I am 5'9 155 lbs and work about 8 hours a day. My advice: avoid unless you are a very large person with long legs.
In June 2020 I had extensive spinal surgery. No chair in my household offered comfortable seating longer than 15-20 minutes. This office chair has allowed me to sit comfortably to correct graduate level papers. I take a "break" every 30 minutes and return to this chair to continue my work. It works for me allowing me to do my work!