does it worth the price to buy the orange box if my only concern is to play tf2? Is It a great game??? Explain pls

Thx guys

I don't know, everytime i read about this game i can't find good comments. Can you please tell me if its a good or bad game cause i am looking for a good multiplayer game on the live.

THX

Hi guys

I am looking for a good online game. I want to pick up between the orange box(tf2) and COD4. Wich one should i buy to have the best online experience