The story is cute and its fun to play but it takes foooorrreevvveerrrr to do anything for the customers. Energy is slow build back. You have to spend energy to make things just to use more energy on the thing you just made to combine for customers. It's all a ploy to get you to spend diamonds that are way too expensive. So, I keep playing just to play. I have other games that are worth my money, time and energy.