It was lovely to see spells from previous editions make their way into this book - all translated expertly to fit the streamlined 5th edition. It was also great fun finding new an interesting ways to surprise players/your GM. While not official, my opinion is that these spells have been well balanced and have the potential to add some interesting flavour to most classes. In fact, my biggest concern with this book is that if my GM allows it, I'll be struck with decision-paralysis.
[5 of 5 Stars!]