My wife had this chair for 2 years and I thought it was a decent design so I bought one too. Alas it's a bit too small. The head rest is very uncomfortable so I removed it. After 3 weeks of daily use the frame for the back of the chair broke. (see photos) Not surprising. It's made of plastic. Looking for another chair now.
I had gotten this chair at work to help with lower back problems. I liked it so much when I got a new job working from home I bought the same one. So comfortable. Great for sitting all day with a bulging disc.
The moment I sat in this chair I knew it was the one! The lumbar and neck support makes it feel like it's hugging you. Firm comfortable adjustable height and arm rests. Great deal and purchase!