Yeah, I have an Aeron chair i purchased in 2006. It is still great. It just recently started to misbehave a little when raising or lowering it (my spouse sits a bit higher in the chair) - still works, but is a little sticky. But this is the vimes boots theory of chairs (https://www.goodreads.com/quotes/72745-the-reason-that-the-r...), and totally worth it if you can afford it.