Herman Miller Aeron Classic Under Seat Foam Insert (New & Improved)

It's ok

It's OK and does the job but the foam itself had a ton of pits in it so I'm not sure how long it will last. It's a tad thick so there's a definite "feel" in the back of your legs. Not worth the price but I suppose it'll do the job until it needs to be replaced.

Insert is well made

This is an improvement over what was there before but you need to put more robust tape on it to keep it in place. My insert keeps falling out of the chair. I am ordering more double-sided tape on Amazon.

Aeron Foam Insert

Make the chair more comfortable. The original foam insert was old and falling apart.