Bodies vary too wildly to work on the basis of other people's experience. Also, the price is not an indicator of quality at all.
I have experience with a "famous high-priced high-recommended" model mentioned here, and the experience was bad (sadly, the first 10 minutes of testing felt good). I don't say that it's bad or good; it just doesn't work with my body shape.
I had another experience with another "recommended last-posture-technology" chair, and it was exhausting to use.
Ended up on a 250$ chair that feels much better than the 1500$+ one.