I think the coat is totally awesome! The accessories and JSK are refreshing and somewhat new in terms of the form that it's coming in, but it's not practical (practical as loosely defined, this is Lolita afterall :D) enough for my tastes and my wallet has just about had it with all these new releases lately, so I'll pass.
Its neat that you can now make a whole outfit out of Usakumya themed items. I would not have necessarily expected to see a JSK and coat for this theme. What's next? Shoes? Can't wait to see how that plays out XD