Well, I bought it for the build/buy items and I use the one floor all of the time, but this is not my favorite pack. Forgotten Hollow is a very small world and it doesn't really appeal to me. I find the vampires more irritating than not. It's so annoying to have vampires constantly hanging out like stalkers on my sims' lots. And yes, I know you can lock doors, but it doesn't work if your sim is in a tent or if Vlad is nearby. Also, every time my sims get bitten, it's 24 hours of a moodlet that's inconvenient.
So had I to do it again, I would not have bought it.
But YMMV and I know people who really like the supernatural aspect of the pack.