Love the game, a lot, but there are a few things wrong with it. It is buggy from time to time, and with this most recent update, the quests sometimes disappear and you can't view them. The most recent event, the Halloween one, was also impossible to finish at the highest tier. There was a high demand, and you couldn't collect monsters if you collected too many. While the next event should be easier (or at the very least, possible to get everything if you're dedicated enough), it still deserves 5 stars.