Mine is my main "Chicken Pick'n" drive. It maintains my Teles' snap but still sounds nice and thick. you could probably cop a similar sound with you AM TS9, but I feel like the Helium has a much less boxy mid-range than most TS style pedals I've tried.
I've been wondering this myself. It sounds pretty good in the youtube demos, but being low gain it's hard to tell if the clipping is from the OD or the amp. I wouldn't mind seeing what's under the hood.