Is skyline a good movie?!?

I like to download movies, but due to limited space on my computer i can only keep them then delete them later. I like war/sci-fi/comedy movies, like Battle Los Angeles, which looked related to skyline. I heard skyline was terrible, ok, bad, crappy, good, awesome, etc. So i dont know which one is it. But i heard the ending was stupid. Someone tell me if it's good? I read a few critic reviews and they said it was bad. I don't want an answer saying "it's worth watching" because that's stupid. just say if it's good or not and add details if you can