This is a strong 7/10.

pros:
-fresh take on legal kdrama (maybe because it was an American series remake)
-no interrogation room because we all know those scenes are just full of BS
-no CEOs/politicians plotting and scheming shenanigans
-no killings
-PHS's face(those close ups of his face is just distracting in a good way)
-PHS departure from his previous roles( I was not a fan of his previous dramas TBH especially strong woman however this role is a complete 180)
-chae geun sik, probabbly the most likeable villain since Lee Junho in chief Kim
-ms. Hong (TBH, she and atty. chae are the only ones brightening up the dull and grey office)
-there's not much interfering characters which I liked because you can only focus on the main leads and supporting actors

cons:
-the job interview scene on ep 1 felt too scripted, it did not gave me that "AHA" magic moment.
-no character build up for the characters
-I'm lost most of the time on what they're talking about (it gets too technical at times)
-the cases are too normal for a drama. don't get me wrong, I'm all for realistic dramas however for a legal drama that can get too boring, cases needs to be exaggerated a bit.
-it felt like they compressed every suits US episodes into 16 episodes, to me it felt rushed and the pilot episode felt like it was in episode 8 already
-chae geun sik have a better bromance with Kang seok than go yeon woo
-PHS sloppy suits, for a show called suits, c'mon I was expecting a bit more dressed up (I don't remember suits US cast to be that sloppy)
-this is for people with a long attention span, but for someone like me who gets bored easily, I ended up skipping most of the scenes

PS:
I can see Kim Soo hyun playing the role of go yeon woo much effectively (if he's not in the military)