I purchased this app so that I could not only use them for oracle card readings on the go away from home but also so that I could become more familiar with the different Ascended Masters. After using this app several times I am very happy with my purchase!!
I am a professional tarot reader. I enjoy all of Doreen's cards and have quite a few of her electronic decks. To anyone who is unfamiliar with tarot apps, the style Doreen offers, where you have the ability to shuffle and choose the cards as if they were cardboard, works even BETTER than the "real" thing. This is my opinion over several years w these apps (others, which do not allow you to pick your own cards, are far less good). The reason they work so well is because the non-physical world is very adept at manipulating electronics. The non-physical is on a very high frequency and thus finds it easier to interact with all things digital, rather than expending the extra energy to manipulate denser physical reality.
Therefore, I find that these decks all work extremely well. If you have never used any of Doreen's decks, I recommend starting with her Angel Tarot. This is because Doreen's multiple specialty decks, like this one, tend to be geared towards the great spiritual issues we all struggle with, but I think they are less useful for everyday sort of questions about work and relationships and so on. We all wrestle with spiritual questions at times - esp if we are Doreen's fans! - but we all still have to navigate the daily grind.
So, if you are a true blue tarot user with multiple decks, as I am, this is a great specialty deck, but if you are just starting out you might want to try the Angel Tarot or perhaps her Messages from the Angels deck (hint: a "real" tarot deck has 78 cards of a specific sequence - hence the term "oracle cards" for these other decks - and the more cards, the more detailed the info you can get). If you are able to take advantage of the beta preview function on Kindle, I would play with all the decks to see which one resonates before making a purchase.