I'm not a video gamer myself (at least not since I had an Atari as a kid), but I thought the first movie was a pretty fun guilty pleasure. There were some fairly inventive sequences and monsters, and Mila looked really cool kicking ass.
The second movie was a big disappointment though, being just another generic "zombies take over the city" movie. The third one, set in the desert, I liked a lot better.
I still wouldn't have wanted to pay to see these in a theater
, but as late-night rentals they were perfectly fine.