I also just got a FGC in the mail, so far I am fairly impressed. I tend not to do so well with compressors, I've been on the never ending search for the compressor that fits me. So far I dig the FGC, mostly on the Sustainer setting. Zion, can you suggest some sorta subtle settings that you've been digging? I am just trying to get the hang of this thing.
So far I definitely like it more than the other alternatives I have tried (barber, monte-allums, dyna comps, diamond etc.). Its somehow fuller sounding. More updates will come with time.