That's the one word that I would use to describe this manga from the other Adachi works that I've read so far.

I'd have to say that the lack of a sport context is fairly noticeable, and not in a good way. The story seems to drag for a good deal of the time, and I personally didn't feel any affinity with the various side-characters. The main characters seem to move at an ultra-slow pace, there are many "filler" chapters. I'd say that overall many characters feel distant. To me the real constant, important plot advancement only starts in the last couple of volumes. The feel is very different from the other Adachi mangas. I was rather surprised, but then again this is the first Adachi with no sport context that I've read. I believe that this could've been done in 6 to 8 volumes.

That being said, there's one element in this manga that has been lacking in the other Adachi mangas that I've read and probably a good deal of mangas out there: C-L-O-S-U-R-E.
There is a decent ending! The important loose ends are tied, the often "assumed" elements are there! Even an epilogue chapter is provided! There are some questions left, but in my opinion those were purposely left out in a tasteful manner.

It's surprising, and rather perplexing that Adachi seems to tie the end of the work so damn well in a rather early manga and leaves so many plot holes in a recent work like Katsu.

My scoring so far (completed readings):
-Rough 9.2
-Katsu 8.5
-Miyuki 7.5
-Hiatari Ryoukou 7