Starts off strong, keeps you watching just to see what happens next but not necessarily in a "this is a really good drama" way. More like "wait... who is she going to end up with?" Keep in mind I did not watch the first season since the reviews weren't too great and I have not read the webtoon/comic it's based off of, but I decided to give this season a chance since I wanted to see Jinyoung and Kim Go-eun together. I was still able to understand and pick things up pretty quickly despite not having seen the first season.

Positives:
- The cells were interesting and mostly fun to watch, although they can be a bit "in the way" when you just want to see what happens next to Yumi and Babi. Fun to see how they visually represent emotions and feelings mostly everyone has gone through. It does make typically short scenes drag on though.
- Acting is great, whole cast played their roles well.
- Nice to see Jinyoung and Shin Ye-eun together again, even if it wasn't the best of circumstances.
- Cute moments, heart fluttering moments, funny moments, dramatic moments
- Keeps you engaged for the most part
- The soundtrack for this show is great and fits well

Negatives:
- Some scenes drag on for a while since they have to show how the cells react to the situations
- Can obviously tell it's based on a webtoon given the way things play out. Ending is a set-up for another season?
- The show makes you go through two whole seasons with two different guys, only to have both of them discarded at the end in order to set up another love interest for the next season.
- By the end of the show, Babi and Woong are still not over Yumi, yet she's already off trying to find another guy. I wish they could've at least had Babi and/or Woong move on or find another love interest. Just seems weird to go through entire seasons with these characters and their relationships only to have them tossed to the side anyway (other than being swayed for a moment, Babi was such a great guy, and Woong seemed okay too despite being kind of stalkerish and overly-obsessed with Yumi, yet neither of them get a real happy ending).
- Some unrealistic moments that scream "webtoon plot progression" and unnecessary side plots. Woong suddenly becoming successful and rich, Ruby and Control Z's sudden relationship that I didn't really care for, editor Ahn Dae-young's plotline that was admittedly funny but not really necessary.