Disappointed. I really like the game, it's a good time sink. It's guilty of the usual app game difficulty curve that tries to force you to spend money, but they have "free" ways to get the in game currency too. I did a few of those offers to get gems, completed a few, and they refused to give me the gems. I put in a support ticket, and got garbage back. Far as I can tell, they refuse to give me the gems I earned from completed tasks, because I have other, different tasks I haven't completed.