I enjoy it. The lag is terrible for sure. It seems after the original IW left nobody has been able to code a decent COD title for online multi player ever since. That being said, I think this is Treyarch's best effort yet. They just aren't as good as IW was.
Its weird i have such a love/hate relationship with this game. I think it could be so good if yes the LAG was fixed, i can get over how i feel about the maps i think the size is fine but to many lanes of sight. I really think if the speed of the game was brought down a bit like 10-15% and if Health was increased, so there was actually gun fights, i think you would a fantastic game.