Suspicious partner worth giving it another chance?

I really Like Ji Chang-wook so much I want to see his beautiful face on screen as much as possible but when I first watch this show I find it really boring for me. It’s a legal/crime show but it’s very boring I even couldn’t finish episode 2 the female is very unbearable and annoying. I checked wikipedia and find that this show is f**king 20 episodes????? I said nope bye and I quitted it. It has been 2 years now and I keep on reading here and there that this show is great and fun to watch and the leads have very strong chemistry (they rumored to be dating in real life that time) and I have a feeling that I missed something or I misunderstood the show. I love JCW so much and I think why not let’s give it another shot. So does this show really worth giving it another chance and watch it again?