Not interesting?
Thorin you have the book or are you talking about the previews only?
I guess you're talking based on the web previews and I'll follow this with that in mind.
First to be honest, I really like the idea of the Dancer Class.
Do I really need it? No
Can I get something like that with 10 levels of a PrC? Yes
I'll use it? YES
See the variant classes are optionals and you could choice not to use them if you don't like the class, but saying a book isn't interesting based on a single class preview?
IMHO the concept of the PrC was good at first but now it really looks like the 2E Kits and to be honest I prefer to have an entire new class that it's focused on something than a ten levels PrC that I could fill the requeriments at level 5-6 and get a lot of special abilities each level.
On the new skills I don't see a problem there.
I mean you get more skill points than feats and there's hundreds of new feats, in this book you can find around 100 new feats and think that at least there's 10 new on almost every d20 product you could buy.
It's up to you to use them all or pick the ones you like, it's the same with new skills but that doesn't make the book or the new skills no interesting.
Anyway this is just my point of view, I plan to buy this book before the web previews and now that I see a few pages of the book I cannot wait to read it.
Cazador