Color Rush was unique! Here are my pros and cons:

PROS:

INTERESTING TOPIC. We really got a look at what it could be like to live in a world of grays, without color. I began to believe that a "probe" exists! Upon research, I see that it is a fantasy. But it's a great "soulmate" kind of fantasy. I also liked the plot twist at the end (Yoo Han's prosopagnosia).

YOO JUN'S ACTING. As Yeon Woo, Yoo Jun's acting was very effective.

OST. I really liked the theme song.

CONS:

ACTING. Aside from Yoo Jun as Yeon Woo, I was disappointed in the acting. Heo Hyun Jun, as the probe Yoo Han, was pretty stiff and colorless (no pun intended!). The actress who played Yi Rang (the aunt) was constantly mopey and seemed depressed, but what could have been a sympathetic character just came off as cold, boring, and bitchy.

UNCONVINCING. For me, while I liked the show, I wasn't jumping with excitement to see what would happen next. The whole series had an element of unhappiness to it (which can be really effective in a drama) but this seemed rather weird and not compelling enough to draw me in. Despite a "dead fish" kiss, it was nice to get a happy ending, but even that came off as too rushed and almost misplaced.

It's a 7/10 from me.