Quake fans won't be disappointed
Gameplay: The single player should take an experienced FPS games 9-10 hours to complete. The action is good, but it's nothing you haven't seen before. There are much better single player first person shooter experiences out there. The vehicles you drive are sort of mediocre. The weapons are cool, fun to use. The Multiplayer is like almost an exact copy of Quake 3 which can be a good thing if you like Quake 3. Sure there are no bots but nobody cares. It's you versus real people. The single player is just right in difficulty.
Sound: The sounds are good. Good voice acting, music. The weapons sounds good. The only real problem is that same darn voice announcer from quake 3. He gets a little annoying after awhile.
Value: Totally worth the money if you loved the Quake games, the multiplayer is the star of the game and can last a long time with you. Sure there are only 9 multiplayer maps, but these 9 maps are GOOD at least.
Conclusion: A great game worth purchasing if you are those who liked Quake 3. Those who detest Quake 3, stay far away as this game is not worth your money.