I also will keep comparing this to the manga, be warned.
Note that these were also one of my least favorite chapters in the manga, but I still enjoyed it more than the anime.
As an ecchi/fanservice, this is good.
As your normal Love is War comedy, this is awful.
As an adaptation, this is meh.
General:
The animation and art were as expected, no less than amazing, but I have no comments whatsoever.
The soundtrack was fitting to every scene and hearing Daddy Daddy Do and Kaze ni Fukarete felt so nostalgic, I loved it.
The voice acting is just as good as the previous two seasons, you can feel that they're giving it their all, and every line to each character was filled with life, I won't go any further because I want to keep this review short.
First Part (Darkness 1): 2/10
Disappointing. Like, excuse you, what the fuck? Where did all the comedy go? What I liked about this part in the manga was how Aka kept roasting cliche fanservice like he usually does while still attracting horny weebs. But this, this was just normal fanservice and they exaggerated everything. Completely annoying.
Second Part (Darkness 2): 6/10
Meh. Nothing much notable about it, I'd say they followed the manga properly in this one, and I don't want to rant about how much I liked the voice acting because it will take forever.
Third Part (Cooking Contest): 8/10
Yes. This. This is what I've been waiting for. It was the Love is War I was waiting for. And it was fucking beautiful. I have no comments other than the art was a bit off, but that's probably because I was watching low-quality raws, so no complaints from me.
I'd say the only good things that came from this adaptation:
1) I got to hear the lines in the voice actors/actressess' voice, I live for this.
2) Daddy Daddy Do and Kaze ni Fukarete nostalgia.
3) Hayasaka in glasses. Hell yeah.
That's about it, I guess.
[This is just my opinion btw, nothing more, nothing less.]
