It is true, that this manga is slow and the narrative is quite fragmented but i think it is part of its charm. Not to mention, that it is released once a year - some detachment and absence of details on mangaka´s side is understandable.
Plus, thanks o the slightly chaotic way in which the story is presented, you can enjoy second reading more (or appreciate it more).
The stories are charming and very gently presented - even when dealing with difficult subject and inter/intrapersonal turmoils, there is not an ounce of melodrama, which is blessing from Heaven.
The romance here is mostly based on what is omitted but is far from unrealistic, it is just presented in different manner than usual (and leaves you, as a reader lots of space to play around), which is one of the good points (if you are tired of hysterical blushing boys, you will appreciate it) (not that they are always unbearable).
What else... if you enjoy reading subtle stories with a hint of nostalgia (Meiji period setting) and japanese ghost folklore, that are trying to be historicaly accurate (maybe believable is better word); and you dont mind slow reading (and sometimes going back few pages to make sure you know what is going on), you might like Gengetsrou.