This is from someone who's watched the anime (both series and OVA) and read part of the manga.

I didn't expect the live action to be this good.

It's pretty jarring, of course, to have different hair, looks, etc. but that comes with casting actors for a live action series. This actually did a good job at casting the characters despite not changing hair colors or keeping original character designs.

The chemistry between both romantic and platonic relationships is AMAZING. Romantic scenes were well fleshed-out, and the acting was superb given how little time they had to cover so much story.

The cinematography was also insanely good, and the shots look more like they were made for a movie than for a six-part series. I was really impressed by the artistry behind the scenes.

Now, for the kicker though: The soundtrack. Ohhhh, the soundtrack. It's ALMOST perfect ---- except for one MAJOR flaw: the climactic song. I'll have to admit, I hated it the moment Mafuyu sang it, but it did grow on me like a strange mold. It's very off-putting given the general trend of the series's soundtrack, and I feel that it didn't make the best use of SANARI's vocal prowess. The chorus was painfully nasal and not the most creative of melodies. Still, the lyrics are on point, and the song still tugged at my heartstrings. I think anyone who's watched it can agree that the song really was a giant letdown.

Now, don't let that song deter you from watching this gem. It doesn't break the show, and it's followed by the most heartwarming scenes in the whole series. This is still a must-watch for anyone who wants a heartwarming BL story that's stood the test of time and produced the best adaptations, this included.