Played one round of each, like Webb said Blood Money is a neat mode.
Plays pretty well, and looks decent, and is more or less fun. That said it really doesn't feel like a Battlefield game, probably beginning with the stupid concept. Definitely not sold, there's other options for 'run in circles inside a shoebox sized map' out there.
The reason I like the BF series is the large map, tactical maneuver, and strategy, not "drop everyone in a blown up city and blast away with shotguns until someone wins".
I miss when BF was an alternative to CoD, instead of a direct competitor. The community was much better then.