I'm an ex-gal civ player who currently plays a lot of StarChamber, and have for over a year.
Gal Civ is an awesome single player game, and I enjoyed it very much. I still fire it up when I feel like a bit of single payer challenge. But in the end, however good the gal civ AI is (and its one of the best i've ever seen), it cant beat playng a human 
From what I remember, many peoples gripes against MP online games were:
1. Impolite, immature idiots who will call you a newb and insult you. The Starchamber community, though small (perhaps because its small) is the politest i've ever seen - I have NEVER been insulted by any player on there, and recieved only helpful advice (and 100's of free common cards to play with!) when I was new.
2. Long games, and people randomly dropping. A SC game takes, on average, about 30 minutes, varying between 15 mins and 1 hour i'd say. Its very rare someone drops in this time.
It is a very strategic, and very deep game. I would love to see some gal civ players join the community!
Edit: i'm not trying to remove players from gal civ, SC more compliments gal civ than replaces it. The single player SC game is rubbish compared to gal civ, as the AI is hopeless. When you feel like a stategy game against a person though, check it out!