@OvermindDL1, you liked a copy of my own post from months above, see my other comment 
Anyhow, yes, apart from both of us having the same issue with that kind of chair, I concur that the front edge is hard enought to make my thighs go numb after prolonged use, so the Aeron is a no-go if you’re sensitive to that.
However, a good feature of the Aeron re. this is the negative-incline option. When unlocked, you get an extra ~ 5° FORWARD tilt or the sitting platform itself and that makes it really comfortable when leaning a bit forward and relieves pressure. But you can’t really at the same time use this AND have back support, the geometry does not really allow for it. EDIT: Actually, I just tried it and you can, but only with the back fully locked in its most forward position.
