I have this deck and Doreen Virtue's Magical Unicorns deck. DV's deck is more for children, this deck is more "grown up". I've done some readings for people with it, and it's very good for questions related to spiritual matters, healing, and activism. It's pretty sweet and positive.
There's also a free meditation that you can download to go with the deck, and I had a very powerful experience when I didn't (I wasn't expecting to at all). Of the two decks I have, the Oracle of the Unicorns is definitely the better.
Here
is a video that shows all the cards.