Hopefully my reply isn't too late, I got my Hero at the end of last week. I ended angling the seat back backwards by about 10 or 15 degrees which meant that my weight was better distributed (i.e. the back rest started to do it's job). I've found the chair to be really comfortable (if not a little firm - although I've read it softens up a little bit over time, so I'm not too worried about that).
Can you give a bit more information about how you have the chair set up currently and answer the following questions:
1) Does it feel like your weight is evenly distributed over the chair? If not, where does it feel like the pressure points are, or where isn't it supporting you?
2) With your heels vertically inline with your knees, can you comfortably place your heels flat on the ground without either i) the front of the seat pressing hard against your legs near your knees, or ii) having little or no support from the front of the seat?
3) Are your hips firmly against the back of the chair?
4) When typing, are you pulling yourself forward in your chair, or are you staying properly seated?