The plot on its own is interesting, I really like the whole illegal organ selling thing. Very dark and very unusual for BL. That's why I like it! I would have wished they would have dived deeper into it, but maybe that's what 'Transplant' is for. It's interesting to watch Tin trying to break out of the loop, but it is also very frustrating (due to the nature of the plot obviously). There were definitely some plotholes and weak moments in the writing.

I also believe because of the endless loops, it was hard to build up a proper romance between the leads. I haven't watched their previous work, but their chemistry personally didn't really work for me here. I can't pinpoint what exactly it is, but I'm just not really feeling the chemistry. It's not bad by all means. It's just not...very exciting.
The acting overall was alright, though.

I did enjoy watching it, I wouldn't call it the best BL out there, but everyone who wants to watch something that is more focused on a complex plot should give it a try!