When I got a Noble Hero I pretty much immediately gave the cushion to my daughter. It's pretty clearly not designed for the chair (presumably for the Icon really) and doesn't do a lot useful.
The head pillow on the other hand is lovely - but I wish they'd designed it in a way that holds it to the chair better (again, I suspect it's strictly speaking designed for the Icon which has a narrower top, or even the Epic which has holes to thread the elastic through).