So far, OF4 is very good, though I have one nit to mention. In the Story Quest Pursuasion, 10 crayfish must be produced for a reward of 2 eels. It takes a 24-hour production in the shellfish farm to produce 1 crayfish, or 10 days to do this quest for a single farm. The basic quest itself is fine (24-hour duration for the production action), but the quantity of crayfish required to complete the quest is excessive, and the reward is minimal, especially for OF4, where most players have very limited space with special buildings, great buildings, etc planted, and, as an aside, have no substantial need for supplies...for this quest, there should be more of a balance between what is required to achieve the quest and the reward for it. I tear down buildings and raise others to accomplish some quest requirements, as many other players do, but for this quest, it's a 10 day duration with a single production building. Could I tear down more, yes, but IMO, the negatives of doing so outweigh the reduced time...my suggestion is that a more reasonable quest of this type (24-hour production, with a small reward like 2 eels) have a requirement of 1-2 items, and not 10...other than that, the OF4 is looking good and going well.
