I'll start with the bad: Sci Fi shows have a couple of big problems to overcome, among which is that they have to be believable and the actions the characters make have to be compelling. As a viewer you don't want to continually ask "why didn't they just do that instead"? And if there's one thing that's still problematic with The 100, is that they don't always overcome this issue. But apart from that, this is a really good show, with plenty of wonderful, unexpected and intelligent twists and turns, a very engaging story, lots of interesting and (mostly) believable and complex characters, and tons of exciting new realms to discover and explore. I really didn't expect to like it as much as I am! But by now, I am in the middle of season 3 and can't wait for the next episode to come. Season 2 was particularly good! Highly recommended.