I won't say that I'm a fan of Yang Yang or Dilreba, but I have watched almost all of their dramas. I came to know about Yang Yang after watching The Four but I liked him after watching his variety shows. To make things better, he's from the People's Liberation Army Academy of Art (I have a soft spot for artists that came from this school coz they are the epitome of discipline, skills and talent). But I was a little hesitant on praising Yang Yang's acting in the past, as his past roles were too similar to one another and he doesn't have many dramas under his belt. I thought that he was too reserved as an actor. But his role as Yu Tu proved me wrong. Yang Yang is really a great actor and I look forward to seeing his military movie!!!
Dilreba suits her role. She's basically the exact fit. When I read this novel a few years back, I was already thinking about Reba in my head. So I'm glad that she had taken on this role and Jing Jing.
I hope that there can be more dramas on Engineers and Researchers. I am bored of seeing dramas about CEOs, doctors, lawyers etc. We need more dramas to change the public opinion about Engineers and Researchers (or Mathematicians etc the stereotypical dry and mundane occupations).