I had a chance to sit in this chair before buying, and I found it perfect for my needs. When it arrived and I unpacked it, the STINK (way too strong to just call it an odor) was SO overwhelming that it had to live outside for a week. I left it in the sun, the wind, and covered it with cedar chips and lavender, and sprayed it with odor eaters before I was willing to bring it in the house. The materials (adhesive? Fabric dye?) off-gassed so much that I would consider them toxic to anyone with lung problems or environmental sensitivities. If I had not sat in it, and known that the off-gassing would eventually wear off I would have returned it immediately.
The pros: It's a great sewing chair if you need to roll between task stations, it's super-cute, and the back rest fits me perfectly for lumbar support (YMMV). The cushion is well padded but firm, and you sit a bit far forward in the seat, which makes it perfect for sewing. It is not a lounging chair, it's a work chair!
I thought it was rather pricey, considering the toxicity of the materials and how much time it took for the off-gassing. Eventually I'll forget all of that and will hopefully just love the chair, because it does work perfectly in my space.
UPDATE: It's been 1-1/2 years since I bought this chair, and I'm updating my rating from 3 stars to 4 stars because of the comfort and practicality & ease of movement between machines. For sewing, all of that is perfect for me. It will never get 5 stars from me because of that assault on my nose for the first few months (it did take that long to completely dissipate!) I know several other people who bought this chair and had no smell when they opened the box; guess I just got 'lucky' :( I can honestly say I love it....now....

Love my chair. I like that it rolls and swivels

Excellent quality and easy to assemble. Love the hydraulic lift feature as well as the storage space under the seat.

For the longest time, I held off buying this chair because of its price. I've purchased several chairs I've used for sewing over the years that are a lot cheaper. So much positive reviews have been written about this chair that I finally caved in and ordered it when my back started to hurt more regularly after being on one of my bargain chairs. Now I know why this chair is coveted by many crafters and sewists around the world! It's is so comfortable and I can sit on it while sewing, crocheting , scrapbooking and putting together Lego sets for many hours. It gives the optimum lumbar support and I can turn effortlessly between tables. If you are on the fence, go get it. It's totally worth it!

The chair was delivered super fast, wife loved the under cushion storage as well as fabric pattern, and it assembled sup easy! Very happy with the purchase!