Carojulie
I don't have the Fountian yet, but it's on my wishlist. Definitely the most modern deck, but like others have said it can be tricky to get to know. I know quite a few people who absolutely cannot read with it, but also plenty people who love it to bits.
It is not the first time that I hear that some people have some difficulty connecting with the Fountain at first.... and then, for many, when they eventually connect, they love it to pieces.
It was not like that for me, I found it instantly easy to read with, actually much easier at first that the Wild Unknown. It is the Wild Unknown that took me a little time, I found it very tough to break in at first... it had to grown on me, and now I absolutely love it. On the contrary, for the Fountain, it was immediatly easy, and immediatly love at first sight. I felt like the Fountain had a lot of things to say, and said it very openly ; like it was eager to share ! And I always find it very accurate. With the Wild Unknown, I still have a hard time figuring out what it says to me sometimes ; like if it liked to keep part of its secrets. It is a wonderful game of introspection and digging into my intuition, it gives me things to chew on !
In any case, I love both decks !