First off I'm really liking this game. Its cute and reminds me of Castle Story which is another one I like.
1. It would be nice if there was a way to remove items that are for sale up in the shop. (If there is already I'm not sure how.) Sometimes I'll find myself wanting something that I put up a while ago, or would like to adjust the price because its not selling. Maybe with a coin penalty?
2. Its not apparent which buildings have been helped out by neighbours, and its very hard to find buildings with hearts. I can go through my whole neighbour's list and not find a single one- except for Stormie of course who always has a full set up to click Could we get some little sparkles like some of the other Story games?
3. It would be nice to not get deliveries involving items until you're actually able to make the items. For example, the flag for flour and sugar deliveries shouldn't be level 14, it should be the addition of the windmill onto your farm. I can see it being incentive to build the item, but when deliveries are the main way to make money in the game, it makes it hard to save up for the item in question when all of the deliveries keep involving things that you need it to make. The ability to cancel orders is very nice though!
4. The first sugar quest had an NPC from Castle Story giving it out rather than a Farm Story one. Not sure if it was just something weird that happened with my game or a placeholder that wasn't removed.