i went with the 1SS. there are a few things i want from the 2SS like the ambient lighting and 4 gauges, but i like cloth seats and i don't think it makes sense to pay for all the other stuff just for a couple things.
besides, the gauges is something i can get dealer installed. and i'm still hoping GM will offer the lighting as well
VIN # 11879, 1SS/RS, born 5/22/2009.