Similar to Epic wood yard building, a new Farmyard building is soon coming to live servers. It seems the developers are trying to help new players upcoming in levels. This building is a simple solution to produce farm related resources (grain, water, flour, bread) in one package.
Players who play casually and run a couple adventures a week will just produce enough of what they need using this building without the need to acquire the new and very pricey improved buildings (farm, silos, watermills). The fact that this epic yard is obtainable and upgradeable through a chain of adventures and not on sale for gems speaks to the devs idea behind it.
However, this building is not as efficient and fast as each of the improved production shops on its own (slower turn around). So, if you play more often and need more than what this epic yard can provide you either need to build those shops to supplement the epic yard production or continue to shop on TO.
For those of us who already have improved grain production it might not be as appealing. Than again, it looks like it was design not to replace the improved chains but to provide new players with easy solution to the game demands in terms of resources needed to run adventures (especially large troop demands of Fairy Tales adventures).
Seen from this perspective – I think it is a very good idea overall. It doesn't make the new improved farms, silos and mills obsolete (they are still faster and more efficient), but gives new players an easier entrance into higher levels.
Great job Developers. If you could come up with some long term buff for this building (preferably made in our provision house) say 24 or 48 hrs – that would be just cherry on the top.