Killzone 2 Thoughts????????????????????/?

well the campaign is kind of not so good but online i can play for a long time its not like the call of duty campaign where its really good campaign and your into it but yeha i actually do feel a little sick after playing a long time i am feeling it right now since i just played but its worth the playthrough though because of the trophies but i overall its good but online is the bets part about it