I had purchased this book at a Friday Night Magic session a few months back. By then, they had already sold out of the Jace cards (of course). Nevertheless, I picked up the book as well as the Divine vs. Demonic pack and went on my way.
I must say that the first chapter or so of this book is a bit tedious, but good things truly do come to those who wait. I very much like how the author incorporated multiple planeswalkers into his novel, even though my personal favorite doesn't make it in the end (or does he?), as well as how he develops Jace's character. Granted, some of the other characters are left somewhat incomplete, but this can be expected as they are not as vital to the story. Once I muddled through the first few chapters I couldn't put this book down!
On the whole, much better than the Shadowmoor book and even the Llorwyn and Morningtide books. I highly reccomend this book!