I am 5' 8". Very comfortable chair definitely recommend it however it may be small for a bigger person especially because of the head rest that may end up against the upper part of your back.
I've been working from home for over 25 years. I lost count of how many chairs I've gone through. This is by far my favorite. I poo-poo'ed the neck support ever since it was a thing. What a dummy I was. The neck support is perfect for all the zoom sessions we find ourselves on these days. I really like that the back locks like a car seat where you want it. Not a single position like every chair I had before. That plus the neck rest are aces. This chair is totally worth the few extra bucks. Assembly was ok but a little harder than average. The bolts are tough to get in. One of them I only managed to get in 1/2 way. Well the other 3 for that part are in all the way so no worries.
I am 6 feet tall and need a chair with good lumbar support. I spent some time trying out several different chair styles. The Hyken seemed to fit the bill for me - comfortable (love the mesh) great lumbar support excellent neck/head support. It arrived on time and was a snap to put together. I highly recommend it!
Materials and assembly quality are great. Mesh feels like it will last for a while. Ergonomics are great IF you're under 6'2 - 6'3 if not then you'll have to remove the headrest because it cannot be adjusted by height only tilted. Still gave it 4 start because everything else was good value.