This book is a fun, fluffy read. If you approach the book with a lighthearted, playful spirit and expect a typical happily-ever-after sort of story, you will enjoy it. Well, most of it, anyway. The magic is fun; a little heavy on laying out the purposes of plants (I didn't really need or want to know and it felt a little Ophelia-like in one part), but I loved how each Waverly had her own niche. Evanelle and the apple tree (yes, the tree qualifies as a character--it had far more personality than several of the humans) were more fun than the two Waverly sisters around whom the book centers. I would even go so far as to say that they made the whole book worthwhile. Without them, this review would be very, very different.
I'd give it four (out of five) stars if it had a more satisfying ending and slightly stronger main characters, but as it is what it is, I give it three.