First, I need to comment on the book binding. These are very nice, magazine style paperback books. But, after paging through the first third or so several times prepping for the first session, the pages are falling out. I'm very careful with the book, nothing got pulled on, and I don't flatten the book open nor strain the binding in any way. The glue binding just starts falling apart and now a whole section of pages has fallen out completely. This is incredibly disappointing for what otherwise is a great looking book. It makes me limit how many times I dare crack open the other volumes I've received.
As for the adventure itself:
The other reviews here are right on, the adventure/encounters are good, and if you do some flavor work-up around the theme of tomb-raiding, it can be interesting - but yeah, the whole first couple adventures into the Necropolis just seem to be completely disconnected to the actual story.
I would have liked to see one or two encounters based on exploring outside in the necropolis on the way to something, running into more unexpected troubles (other than the ambush already there, I mean). It does provide some good suggestion-type details on the necropolis to make this on your own. I would suggest cutting the second adventure site in half (both the layout and number of encounters) and having the party deal with two other encounters out in the necropolis based on where they say they go.
It does, however, lend itself well to a group that isn't very experienced in a table-top rpg, and maybe that's what Paizo had in mind here. The distinct chunks of tomb exploration are a great "intro to dungeon delving", if you will. The dungeons, traps, treasure, and random encounters are all there without the risk of being away from town. That can really help a new group. And if you're a GM that makes traps more interesting than default, those fit in pretty well.