I watched the entire first season. I dropped it halfway through S02e01.
I also like the concept. I like the idea of eight different people who are all totally different and good at different things, but all work together and help each other out. There was this one scene where the lesbain hacker girl tries to escape, and is helped out first by the korean fighting women, then the cop guy, and then the bus driver. That's kind of inherently cool.
But the finale was really weak. They had the odds stacked against them and just had enough luck at each step to pull through anyway. What kind of stakes are supposed to be left after that? It's pretty clear that the show isn't willing to let anyone die. It is, on the other hand, quite willing to have some of them kill lots of other people, and pretty much gives them all a moral pass.
I'm also increasingly frustrated with the gay actor guy's story line. The beginning of his arc is great, where his publicly held girlfriend finds out and you think okay she's going to be mad and stuff and instead she's super into it. Then she messes up, but takes responsibility for it, as she should. But his BF breaking up with him and he trying to commit suicide and failing I thought was super lame. And the german guy is worse, he's just an awful person (and murderer), and the other just continue to support him without questioning whether they really should, which comes back to the moral issues.