For fans of AvP universe this position is a must have. For everyone else? Well...
First of all - the game has a nice story to it, unveiling itself through three separate campaigns. There is Lance Henriksen playing You know who, whose voice You'll be hearing throughout the game. Arsenal of weapons for each race is as it should be - nothing fancy and new - everything You already saw in movies.
All three campaigns use the same locations. It can be boring to see same places over and over, but You will navigate them differently, as every character moves differently. Most maps are too narrow and You can feel lack of depth and choice to pass them through. AI can sometimes be immensly stupid, be it xenos, androids or humans.
Now, for 100% You will have to play multiplayer. It's almost dead, but don't look for games in lobbies - go to servers and search there. You will need many friends playing to get all cheevos though.