[dsacco]

I have an Aeron chair in my home office, where I sit for most of my workday. I love it. I'll add this to the discussion about finding (and assessing) a good office chair.

What you need to understand about a quality chair is that while it should be very comfortable, you should not expect to experience nirvana when you sit in it.

Often the prices of these chairs have people expecting some magic to happen when you first sit down. On the contrary, it shouldn't feel "superlative" when you first sit in it, it should just feel comfortable. In fact, it might not feel special at all. It's only later - 4, 6, 8 or more hours later - that you'll realize the chair's true value, in that it has become an extension of your posture.

The mark of a quality chair is not that you will notice it when you sit down, but rather that you won't notice it after sitting for a long time.

Other than that, ensure that you purchase the correct size. I have never found any problems with the Aeron's lip, but I purchased and customized my own, so I was able to make sure it came in the correct size. Offices with pre-assigned chairs may not offer this luxury.