It is great in its simplicity. For someone who is looking for a simple daily thought this would be good. If you were looking for a deeper study, this is not the place to start. It would be appropriate for a young teen or preteen and older teenagers might find it to be a little strange or goofy.
Overall, it is probably worth picking up for a younger child if they are looking for a simple devotional book. It may even be good for you to go through it with your child to introduce a little more discussion that the book is lacking.
I received a free copy of Dare U 2 Open This Book from BookLook Bloggers in exchange for this review.