In general, I like this show. The problem it seems to be having is that every episode, they seem to simultaneously invent new technologies at an extraordinary rate in order to solve some show-specific problem and forget about technologies they already have. (e.g. Why not use the EMP to take down the UAV in the first couple minutes here?)
As much as I want this show to be great, I can see why it was cancelled. It just seems like another show that doesn't even try to make it's fictional technology feel realistic. I don't have a problem with crazy new technology, but it makes suspension of disbelief rather difficult when it always magically appears just when it's needed to drive the story, and even worse, disappears when it would prevent the story from taking place.