I bought it based on the reviews from Gamespot. I really enjoyed it except for a few things that ticked me off. First, it was WAAAAYYYYYYYY too short. It should have been at least twice as long. I remember the original half life, and I wish that all FPS single player games could be that long again. Second issue was that half of the quests in jail were unfinishable. THree or four of them were all linked or dependant in some way of being able to talk to the guys in section A of the courtyard, but since they wouldn't talk, none of the others could be finished either. Maybe it doesn't happen for others though so I don't know. At least the game didn't require those things to happen to be able to finish.