The best thing the show did, was not starting with a sex scene as the manga did.
What was frustrating was the lack of communication overall, but especially on Asamis part. He was in love for years and still can't communicate properly when he has the chance. Of course, if both are in love they don't really need words to convey their feelings, but if the partner is inexperienced, shy and never experieced love in his life, it would help tremendously. They should have shown Asamis reason to love Yuki in Episode 2 also much earlier to give the viewers more to work with and to better understand him, I think to do that in episode 7 was a bit late.

Besides that, the series was beautifully crafted, cinematography was great and they tried to be sensual all over. The mellow pace was not a negative for me per se, but the series draged on a bit. Even with this flaws the MLs did act a wonderful job and only failed with the kissing scenes which was a bit disappointing.

So in summary a good show with some flaws but enjoyable to watch.