[shurcooL]

I've used the Herman Miller Aeron for 3 years at various San Francisco startups, and got to really appreciate it. Its best features for me were the ability to forget I'm sitting in a chair or that it even exists, I could just focus on my work. I ended up getting one for my current office. It was the new 2016 refreshed model, which is slightly nicer. I like it a lot.

It's also unbeatable if you tend to run warm, because of the mesh that has great air circulation. In a normal chair, you'd be sweating otherwise.

That said, I also got a standing desk and I think it's fantastic to be able to stand half the day, and sit the other half.