I started (and then quit) shortly after the initial release but started it up again when it showed up in STEAM. It plays so much better, though there are still occasional gameplay bugs. On occasion I get trapped in a weapon and can't fire, or get trapped in the weapon select screen, but this only happens once every hour or two of gameplay.
The maps are changing with every release to try and balance them out, so issues come and go with those.
All in all, the experience is MUCH tighter than BF2 which is just a sloppy mess. (I'm talking about gameplay, but the precision in which your commands are executed if that makes senese).