The eternal complaint: Energy limit is too little, energy recovery too slow, and the tasks (especially event tasks) take WAY TOO MUCH energy to complete but only get measly resources from that. For example, a big tree that needs 169 energy would need you to wait almost 6 hours for enough energy. Exp points are too little for the difficulty of the assigned tasks. Pay-to-win design too frustrating, ruins the good animation and storyline.