I recommend the v2, although the v1 is also great.
Best office chair, hands down.
Basically looks like a simple office chair, very unassuming, no nonsense. Until you sit on it. There's a ton of controls to get it just right for you. It's sturdy, nothing has broken in the few years I've had mine, not even scuffs.
I tried out both the Aeron and Embody chairs from HermanMiller for a few months before getting this. This one wins hands down for me. (I said "for me," geez!)
I deal with neck/shoulder/arm pain and essentially have to make sure I'm always sitting in a good posture. This chair actually got rid of my pain all while feeling like the most comfortable chair I've ever sat in.