Now, full disclosure, let me start by saying that I was a big fan of the 1st series and the original couple. Nonetheless, I wanted to give this a chance so that I don't judge the 2nd series prematurely. Unfortunately, it was a bit of a letdown for me. Let me elaborate:

Story & Production: IMHO they tried to do too much for the budget and running time they had. The production quality left a lot to be desired and I've come to expect more, even from short K-BLs. The story felt rushed and perhaps not thought through properly. This is something where the 1st series was also lacking a bit, but the issue was exaggerated in the 2nd one.

Actors: I actually liked the new actor (Hyuk), I think MLs had good chemistry and had they been given a completely new BL series, I'm sure they would've been great together. I really feel bad towards them so I hope people will show them lots of love, regardless of their overall opinion of the series.

Rewatch value: To me? None. It wasn't terrible, but the actors (and the OST) were the only redeeming feature.

Conclusion: I don't regret watching it, I just simply liked the vibes of the 1st series better. It was a bit more light-hearted, there was an actual mutual romance between the MLs and while they left some holes in the plot, it wasn't too complicated. I can't say the same for Color Rush 2.

P. S. Huyk really was a cutie, I hope he won't receive hate (all the actors for that matter) for joining Color Rush 2.