I'm surprised that this show has such a poor rating. Frankly, I loved the show. The the one negative comment I have is that the first two episodes are very disconnected from every other episode in season 1. I'm hoping when season 2 comes out it will make more sense and all come together.
If you like the Tom Cruise shoot them up, save the world from the aliens kind of show then this is not for you. However, if you enjoyed the BBC version of War of the World's then this show will be right up your alley.
It's a much more believable version of how things might possibly go were we to be invaded. It focuses on people and how they react in times of crisis.
I'm very much looking forward to season 2.