There is a free trial right now, 14 days. Though it requires a credit card to redeem it (you dont actually pay, its just a way for people to not play the game solely through free trials).
Im a current subscriber, in fact; I just got rank 3 in the airforce, so now I can fly Bf-109G-6's (Damn those 13mm mgs and that 30mm cannon is amazing).
Anything on the ground and air Im capable of (rank 6 and 3), so just reach me in game at Sgtr0ck9 or PM me. Maybe we can get some TS going or something.
Coarse, your going to have be playing The Big Bad Germans (aka the underdogs) since Im part of a squad that focuses on the German side.
As for RO its a little half and half. I like the ballistics in WW2OL better, but the overall feel of infantry combat is much better in RO. Tank combat in RO doesn't even compare to WW2OL, but its really a different type of game (and being so, RO's tank combat is one of the best). Everything else is pretty much far and few between kinda thing. Both are very enjoyable.