First off, the game has AMAZING graphics. But what's even better is the sounds. The blaster fire, the tie fighters roaring, the lasers screeching.
The game doesn't need xbox live to work, but it is much better with it. I'd like it if the game offered more single player content than just the same few missions and skirmishes. So if you don't have xbox live it can get old quickly. It does however offer local co-op so I think that's great.
Overall, I'd give it a 4 out of 5 stars.