Alright so I went to Sam Flax today to try out these chairs: HM aeron, mirra, embody, and the leapcase amia & leap.
Out of the HM chairs, the one that I liked the most was the posture fit aeron size B. Its support is quite unique, and feels a lot better than the regular lumbar support that comes on the regular aerons. What I didn't like about the aerons, like someone mentioned, is that there's only 1 real way to sit on a HM chair: up-right. While this is fine for a work chair, I also use my chair to relax and i'd like to be able to recline freely. I do have to say that the mesh is very nice though, unlike the previous chair that I bought; it's not stiff and would seem very nice to sit on during the summer. But alas, the posture fit aeron is way out of my price range.
As for the embody... I didn't get to spend too much time on it, but it definitely was very nice. I was kinda confused with adjusting the chairn and couldnt figure out how to recline on it. Way out of my price range though, for me to even consider it.
Onto the steelcases, I think i prefer the Amia over the Leap. The leap has minor features over the Amia, and the shape of the back is a little different over the Amia. The Amia seems to be more sturdy, and the back felt a little bit better than the leap. I really like how the tilt-lock works on the leapcases, you can recline, lock, and stay in that postion very easily. The lumbar support on the Amia is very nice, it feels very natural, and un-intrusive. I like how the lumbar support also follows me when I recline on the chair.
At the price point, I think the Amia may be the best purchase that I can make. Can you guys comment on these 5 chairs if you've had experience with them?