It's definitely not a Sci-fi show! There's nothing Sci-fi about it. It's more of a action drama, sort of like Prison Break.
I actually like the series. They haven't really finished the story. So I'm glad they renewed the series even though it wasn't for a full season. I'd love to get to know more about Jake's and Hawkins' past. Also, trying not to get into too much details or giving anything away, I want to know more about what happens "now"
It's definitely a show everyone should check out. This show it's kinda like a worst-case scenario to what could happen to any countries in the wake of terrorism. It deals with corruption and everyone's darkest fear. I think the show got canceled probably because everyone's too scared to see what could really happen. I think people should watch it to better prepared themselves for any kind of disasters.
p/s I think it was categorized as a Sci-fi show... because it was aired on the Sci-fi channel?!