I ordered it about four-five days ago on Amazon, and it came in today, so I'm happy.
I have never played in the original I6 version, so I do not know how to compare this version with its prior edition version. All in all, I like it. It could have been better, but it could also have been worse, so - at first glance - I would give it an 8 / 10. I need to read it through entirely a time or two before I can really hope to give it more than that (or less, although it would have to have quite a bit of disappointing problems / errors for that to occur, I think).
As already stated the maps are small. The largest of them - the Main Floor, the Court of the Count, and the Catacombs - take up half a page - and the first two have about an inch of empty space around them. Actually, the first two are sepia / brown tinted but otherwise colorless (as are about half the maps, although some are tinted in gray rather than sepia / brown). I've wondered a time or two if these might not be the old maps with new lettering, north symbol, and squares (for room size, etc), but that seems unlikely to me. Not impossible, but certainly unlikely.
Having the encounter information separate from the descriptive text is odd, but I may be able to get used to it. I think the first time someone runs a campaign based on this book it may require a bit of page shuffling to work out, but it might not be as bad as it currently seems.
The generic-ness of the setting means it can be placed in many settings without much trouble, but I think if I were to use it in such a manner I'd likely make some changes beyond merely names and location. Ravenloft - the 3e / 3.5e setting - has some interesting creatures, vampire variants, rules, etc. And there are several 3rd party options for vampires that sound like they could make Strahd and his servants even more interesting (specifically,
The Immortal: Vampires and
Vampires: Lords of the Night. (I wish the creator of the latter would sell on ENWorld, as I am curious about his Zombie book and would prefer to buy it off ENWorld.)