it's fun, but three events at once is too much, and some of them want absurd amounts of water (Flying Island) or box items (several, but Sweet Island especially) to get past the middle of them. and around level 25 or so it starts asking way too much in balloon trades (15 of high-energy resource, or a tier 3 production item....) and quests/building materials (a dozen of a tier 2 or 3 item). I've had some quests open for several levels in a row because I can't keep up with them all.