Great story, and great exploring feeling, gameplay is same as always, but as always, it's good :D
The characters are all pretty cool, you'll grow attached to their stories, however it's kinda sad that there's not much conection between the events on the mojave and the casino (if you pay attention you'll find out that one of your partners's story is expanded, however, your partner won't notice it afterwards and you can't bring that up on the dialog nor can you bring veronica in the discussions with the new characters).
The new weapons are pretty, nothing flashy or amazing, and the new clothes don't offer much, however the story and the exploration, plus some little puzzles are really appreciated for a change of pace in fallout's action.
all in all it's not as good as point lookout, but it's an interesting DLC, much better than mother ship Z, and with a great story, and a nice glimpse into future DLC