harley: I thought it was a very entertaining movie. My two complaints were:

1. It was too focused on Tom Cruise's character. It felt like the aliens were specifically out to get him. It would have been nice to have some scenes to show that the "invasion" was global.

2. It ended too quick with no climax. Going good, then they all got sick and died...in a matter of minutes.

but, still, it was very entertaining!