In the last few years there have been a load of Sci-Fi series. Among them there are some good ones, some bad ones and once in a while some great ones. This is one such series.
It remains hip and trendy at first , but has heart and dark humour added into the mix. It's stars and guest stars generally deliver excellent performances and the characters are sincere and you can really relate to them. Jessica Alba really stands out, anyone who says she hasn't had a chance to show her acting skills should watch this. Overall if you like Sci-Fi , you'll love this.
The only downside of this is that there were only two seasons, what on earth Mr Cameron was thinking off cutting it short is beyond me. The writers and actors could have taken this to legendary status, but I guess we'll just have to settle for exceptional.