Multiplayer is fun, but a bit hard to get used to. An obvious example is the fact that you can kill your enemy and at the same time get killed by him. Besides that, the only thing you might have to worry about are the Japanese players. They're, most times, maxed out at level 200 already (Don't worry leveling is easy) and they know the tricks to each level. Most of them are excited for Lost Planet 2 and are playing the mess outta 1.
Btw, not to change subject or anything, but if you have a ps3 or 360, go to capcoms website and get a key for the Lost Planet 2 demo. Its supposed to be playable to all on the 20th i think but I've already had it since the 5th. Plus you get a special weapon not available in the retail version of the demo (Open release).