To enjoy this game, you have to pay some real cash. But only 5 dollars is enough to have access to more miscrits that you will never be able to train.
The Kongregate version is a satisfaction for me (I do not like the Facebook apps and social stuffs).
The really lack is that we don't have access to Volcano Island. Just implementing Volcano Island (and its free zones) should really be done.
And the quests should be fixed to correspond to the Kongregate/No-social version.