Ran/played my first Cold City game last night as a one-shot for two of my friends. It totally rocked!
I've been having a crappy week with back pain, being oncall at work (I had been paged at 2:15 am and didn't get back to sleep) and all of us were new to the rules... but in spite of all this the game really came together. We did the intro adventure from the book and the two other players took the French and the Soviet sample characters. There was action, influence, trust, and sweet, sweet betrayal. I left the session totally recharged after all this week's crap.
I just love the setting of this game, and frankly you could replace the system with rock, paper, scissors, and Cold City would still be a blast to play. That being said I think the mechanics of the game are really cool, and helped me with getting over the gm-as-entertainer habits I have and really let the players take part in directing the story and conflicts.
Next week one of the other players is buying the book, and running one-shot for us other two plus one more. The meme spreads!