Now I want to start by saying that I actualy like the Magic system and I understand what it is trying to do. The only problem I have with it so far is that it encurages the player to try and fail rolls just so he can charge his Willpower to cast spells. As said, I like the part that one has to do other things besides magic to earn the magic but with the system as it is right now the mage players is only going to try and fail as many random rolls as he can just so he can get the Willpower needed for the spells.
Now I havent actuely tested the game yet so feel free to tell me if I am wrong or if anyone experience it diffrently.