Both the best and worst thing about this Manga is that it is still ongoing.

The benefit of this is that it keeps developing so well and this is my favorite story arc of any manga I have ever read. For me, it competes with some great novels' storyarcs.

At no point did I feel like the story had throw-away scenes or repetition of the same old problems.
(Unlike for example, Yamato Nadeshiko Shichihenge-
[url=https://myanimelist.net/manga/422/Yamato_Nadeshiko_Shichihenge%E2%99%A5?q=the%20wallflower].
Just when I think the story is going to end because some conflict is resolved, another one pops up.
And while this Manga isn't really billed as a mystery, it probably should be due to all of the backstories and drama that pop up for the characters. I love how this manga was able to create so much anticipation in a scene with just some drawings and dialogue.

I have read everything published to date (Up to the March 2017 release) and I suspect this manga won't be wrapped up until AT LEAST 5 more years (2022) at the current rate of story telling, which is why I say the manga still ongoing is one of the worst parts.

I know some people complained about having started it and then having to wait the 6 months between volume releases, but I'm looking forward to getting to re-read the story in anticipation of each release. I hate re-reading or rewatching things, but that is how much I love this story.

I also love the character development.

Because the characters and stories are so great, I didn't really care about how good the art was, but there were a few points where I couldn't really tell what the image was.

Overall, favorite anime/manga to date and I'm sooooooo sad I'm going to have to wait several years for the resolution, but I'm glad they don't rush this story either.