Fun but buggy .
The lags at some points (usually before an event) are so long I wonder if the game froze. This reduces the fun factor badly, especially since the run-up to some events and battles are exciting.
For instance, when I hear the wailing siren of an attack on a Control Pt, I scrambled from medical and run through the door, placed myself behind cover, and...
and...
and...
and...
Needless to say, I was overrun and killed (the game ran smoothly after I was rez'd back at medical. That sort of thing is disappointing, especially because despite the casual gamer tag placed (by the company), you can really get into the game.
It sucks to worry about such issues when you are fighting, and if it continues higher level play will simply not be enjoyable.
I'd give the game an 8.5 (or higher, if it continues to be as good as it's beginning) once they can solve the online issues.
If such issues drive you nuts, postpone buying the game for a couple months: it's not a WoW race to 70th lvl game anyway.