The environments and visuals, plus sound design, are all spot on. You feel like you're playing something truly Star Wars-y.
Unfortunately everything drops off after that. The spawn system has you constantly being picked off from every angle, no place is safe. The accuracy allows players to blast you (not the sniper rifle, just the default blaster) from way too far away. It's really hard to feel like you're gaining or holding ground when all this comes together.
The card system is OK, but I liked "classes" better. The power-ups are acceptable. The vehicles aren't very fun, especially the AT-ATs on rails and most of the fighters.
Overall most matches boil down to: who has the high ground, and are they going to snipe you with their blaster? And every time that answer is "yes, prepare for a reaming."