I think it should go without saying that this book is filled with tons of great art and graphically does a really good job of establishing a feel for the 'setting'.
Having said that once you move past the visuals the whole thing just feels like a cut-and-paste job of existing D&D material. There's really nothing new in terms of deeper content here.
If you're a Magic fan looking to explore D&D or want to re-skin Curse Of Strahd to de-Ravenloft it this supplement may be worthwhile but otherwise it's a bit of a disappointment.
[3 of 5 Stars!]