As for the multi it is very fun to play. So far I played especially FPS on PC, and few if any multi. But we must admit that once it has tasted even on console it is very pleasant. The base maps are complete, the types of games offer a wide variety, and "contracts" and paris to allow matches to earn credits based on your performance. Sometimes you come across upset or ill players (EDIT: there is an option off the microphone of a player if necessary), but then just change room. Overall the community includes a large majority of people quite fair play and pretty cool.
If you need a second controller I recommend the excellent pack with DualShock3, looking good can be found in the price of the single lever.