Despite the troublesome age gap, the story didn't give me the ick like the usual manga with this trope. I really liked the characters and the art. I found Akaris story to be much more interesting and fleshed out (although rushed, e. g. Mizuki returning his romantic affection suddenly) than his friends' Lovestory. Other than the parts where one keeps getting reminded that Akari is 16 (so casually I wonder if Japanese audiences care at all, it's kinda fascinating) it put me off, or rather made me laugh out loud, whenever Mizuki was described as being "straight". The side character mentioned himself being Bisexual, so how come mizuki is still perceived as being "straight" by everyone involved, it's hilarious actually (and again I wonder about cultural differences maybe).
Now, the comments (or rather "Topics") are a wild ride, like half of them can't separate fiction and reality, and the other half is trying a little too hard to justify things without sounding like they're condoning it irl. But in the end there's really not much to argue or justify. It's a BL manga, we're not here to get education or anything of substance
Akari to Kare wa Nayamashii