A lot of the same, but some new qualities that will keep you interested.
The campaign is very short which disappointed me greatly. I got 49 of the 58 achievements (DLC included) in less than 10 hours. You level your force powers in pretty much the same manner as the previous installment, kill enemies, get XP, find holocrons, get XP, boost your force powers, rinse and repeat. The story itself is quite intriguing for those of us who pay attention to the Star Wars lore so if you are into the lore that is a big plus for you.
The rag doll physics are quite funny watching stormtroopers fly through the air after blasting them with a force push. The camera angle can be kind of irritating at times but you get used to it.
Addition of the challenges adds some excitement to the game. Trying to get all golds is hard enough, let alone platinum medals.
Lastly, the twist the story takes at the end of the Endor DLC will have you itching to know what happens next.
Overall, this is a game purely for Star Wars fanboys like myself. If you enjoy it great, if not find another game.