I've had this chair for two months now, and it's my favorite office chair. It was very easy to assemble and I love how adjustable it is. Unlike some far more expensive chairs I've used, the Nouhaus has a headrest and the lumbar support moves with the reclining so that it's always in the right position to give support. I also got great responsiveness from their support to correct one minor issue. I'd definitely choose this chair over the Aeron.