Yoshimura Kana, the creator of Murcielago, is a fan of 1 x ½, apparently: https://twitter.com/yoshimurakana/status/1232243387945734144
It's interesting because even though Murcielago and 1 x ½ are both yuri manga that deal with taboo subjects, I can hardly think of two manga that are more different in tone and feeling and general approach.
incest is the very least of my favourite, but hell this manga excites me so damn much
I've seen more than one person say something to this effect, and I think it illustrates how good a manga it is, subject matter aside. It's just really well done all around, in art and storytelling and everything else. If it keeps up the same level of quality to the end, I really think it'll go down as one of the all-time classics of yuri manga.