The Aeron is comfortable, but the way it reclines feels improper to me. I think their Mirra chair, with it's adjustable arm rests, gets reclining right. I like

The Aeron is comfortable, but the way it reclines feels improper to me. I think their Mirra chair, with it's adjustable arm rests, gets reclining right. I like both because the mesh bottom is soft enough for my tailbone, which gets sore easily due to having broken it a long time ago. The missing feature both these Herman Miller chairs desperately need is a headrest. A 3rd-party one exists for the Aeron, but not for the Mirra. If you want something like an Aeron, then ask your friend with a Costco membership to get you a $120 Metrex IV Mesh chair by Bayside Furnishings. It's 90% as good and it doesn't have the insane recline that the Aeron does. Only downside is, Herman Miller uses much sturdier plastic for their chairs, but that's more suited to shared office spaces with employees who don't take care of their chairs anyway.