I'm already familiar with this model and would continue to buy it - comfortable rightly sized but not obtuse and bulky (been there; done that). I needed to set up another computer station at home - so I got another one of these ergonomical chairs. Great delivery.
The chair has an odd smell chemical smell that lasted almost a week. The mesh on the seat is very rough and not as comfortable as I was expecting given the pricepoint.
Chair is really comfortable. I am 5’10”. The head rest hit me at the shoulders. Regretfully while installing the headrest one of 2 of the screws stripped. The height of the head rest was annoying so I removed it. Luckily the stripped screw pulled out without damaging the chair.