The concept doesn't particularly excite me, though given the authors it should be a quality product. I may pick it up eventually to keep my collection current, but it's not one of those books I bothered pre-ordering.
Too narrow in scope for my liking. A more general "play an undead PC" setting would have grabbed my interest a little more (playing PCs trapped in Niflheim or a necropolis for example) but as is... you have to wonder how well such a niche setting is really going to sell.
I will wait and see. The path of the dead and the restless dead are a good slice of my world myth so I will see what it looks like before picking it up.
I am of the mind that some ideas I have stated on this board may have given seed to this product!