As far as the proposed theme goes, this a great and fun anime. If you like diabetic romance, this is a must. If you like overaged comedy, this is also a must watch.
Honestly, I don't get the rated... 6,9? Certainly those reviews are not about the anime, probably they're like that because of some external factor...
Either way, I had a good laugh, it was fun and the romance was good for an anime standards...not like Horimiya levels of development, but it was better than average.
I guess the plot was a bit all over the places, maybe that's why people didn't like it, but this is a adaptation and it's bound to have some problems though.
I'm going to read the manga, and Even if the plot is not that deep, the main couple are fun to watch.
This is not a masterpiece and years ago I'd rated a little lower, but contracted to many other generic and cliche animes out there, it's not as bad.
One thing that I wish to change is that amane was clearly stronger but suffer from the main love interest diseasez aka. Having to be saved nany times... This is a well stablish formula but you know what I mean.
Either way, Amane and Aktsu has so much Chemistry together, that you'd think they be together by season finale, DAGA kore wa anime kono oroka mono. I'll see you on the last chapters of the manga whe they finale kiss (when both awakened).