After I got Battlestations last year, tinkered with it, and played it solitaire. Now the group has grown, so we took it for a test spin. I ran a scenario for three players. After taking some early fire, the players managed to repair, regroup and conquer.
I probably got a few rules wrong (since there are so many, and it's been almost half a year since I read them), but overall the rules flowed smoothly.
But how was it as a game? Well, we're a board gaming group, so we didn't do much role playing. Battlestations suffers from the same problem that many other cooperative games have, a single player could run the whole group. [In fact, that's what I did]. Now, if you are roleplaying then you get an entire angle that can't be handled by a single player. But as a board game, it's a fixed fun situation. (Thankfully we didn't have more players! The length would have gone up and each player would have done less ...)
I think this could be really great as an RPG system (for full battles, much like D&D uses miniatures) or as a campaign. I don't care for a one-shot game of Blood Bowl, but I enjoyed a league. For a single game, perhaps a player vs player scenario would work well ...