As long as you don't think at all, it's good.The more you think, the more this movie is insulting to gamers.
Gamers would willingly murder people to get their gaming fix. Gamers would do horrible things (rape and assault) to other REAL people for fun. The only players you see are an obnoxious teenager and a 500 pound man who lives in his chair, no middle ground. The chair guy gets off on innocent people being murdered.
The movie goes out of its way to remind the viewer that "playing" these games killed people. Then has the main character murder controlled people without pity. It's insulting to watchers. Are we supposed to see that killing innocents is wrong, until the "hero" does it?
The whole point of the movie is that gamers are sick people who would do the same thing in real life as video games, if they could.