Honestly this is one of those shows I fail to see the appeal. It's looks and plays like an action soap opera, just like Smallville. Both series are sappy, crude and uninspiring.
In the golden age of tv series I dont know how these survive.
There aren't that many sci-fi type shows out there these days, much less ones that survive past a whole season. Most of the time I take what comes along and Arrow is actually better in terms of back story, directing, and acting than some of the other shows like Falling Skies.