I haven't watched the British original (of the same name) so I went in expecting nothing other than what I had read of the summary. Delighted to have found another masterpiece hidden here.
Cannot rave about it enough. Jung Kyung-Ho has once again proved his worth with this drama, this man has shown such versatility like no other. His chemistry with Park Sung-Woong and also Go Ah-Sung is so effortless. Oh, the bromance is so real and the romance between the characters stays grounded till the end, never going into a dramatic frenzy. The whole team has an amazing comfortable atmosphere. Though the ending might be confusing for some and can be interpreted in different ways, one is for sure that it was the perfect ending (though it may feel incomplete) suitable for the drama as a whole. The entertainment value only goes up when there are instances to comedic relief in the episodes.
Perfect for binge-watching because I prefer it that way.
Do do watch it for its brilliant spin on the original story as I have read that even the Producer of the British version has praised it.