Its a lot of fun, but they're are about three critical issues they NEED to sort out fast, or its going to stop being fun very quickly.
1) Autoteams. It's either broken or not implemented. All the servers I've been on so far start you off as American when you first join into them, so the Americans always have a player advantage (I've been in games where its 12 vs 24).
2) Network stability. I've heard a few people talk about a server side memory leek. It makes sense because as games go on it tends to get choppier and choppier. Also when I join a server with 32+ people it quickly becomes unplayable.
3) Balance issues. I've been playing the NVA almost exclusivley, have had probably between 15-20 games and the NVA haven't won once. I think this is a combination of problem 1 and the ridiculously overpowered American Anti-Armour (M60) soldier. You can expect at least half the American players to be this class because it just pwns everything that moves. If you drive any vehicle as an NVA soldier you may as well paint a giant bullseye on your side, as everyone owns and uses their anti-tank weaponry. Try and make a run for it and you'll be mowed down by the same players ultra powerful machine gun, which btw is the equivelant to a NVA soldiers machine gun, the M60. Its just stupid.
If they can sort these problems out, I'll be a happy chappy!