So I managed to score Quantum of Solace early. I have to say I'm not disappointed. If Gears of War and Call of Duty 4 had a bastard lovechild, this game would be it.
As it is a Bond game, stealth is the best way to go. There are quicktime events for close-quarter takedowns. Dodge/disable security cameras or bring a platoon of elite guards down on you.
So I have to say, if you are a super fan of Bond AND the Call of Duty 4 engine AND the Gears of War cover system, you may just still want to rent this instead of buy. Multi is decent, but not extraordinary. Good for Achievement whoring, if that's your thing. The main story is short. A good game to save for the summer drought.