Phil
Coulson has come through this like most other things. Outwardly he doesn't seem overly affected. He does he job, and that's really what this whole adventure has been and continues to be- one long mission. His focus is on keeping the population save and under control. People don't handle this kind of change well, and trapped like this panic spreads quick. He's been part of ensure it doesn't spread.
He knows the dirty secrets, the tech, the inner workings, and up here its probably worse than down on Earth, seconds from death at every turn, but its his job to make sure no one knows.