I gave it a 10. Why? Even though it's not the greatest drama ever written, as it has an FL who does not quite look comfortable in her skin, with the music being quite bland for a music-driven series, the show does three things that elevate it to one of the best shows I have watched: It's short timing, smooth narrative and believable chemistry between the leads. You feel for both of them and get invested in their story early on. As the show is short, the distractions are almost negligible. As the boy next door, Park Hyung Sik is warm and giving but never demanding, which is the antithesis of his Hwarang /High Society/Strong Woman Do Bong Soon persona. He is almost unrecognizable (he is such a great actor). Han So nee looks pretty. However, she is a little out of depth on her own, but her scenes with PHS are crackling with energy, and it reels you in. As the show is all about them, her deficiencies do not distract. Her last finishing act, though, is outstanding. And they make a beautiful couple (PHS is portrayed so simply in this series that you tend to forget how incredibly handsome this man is, but then there are moments when it hits you, bam!). Watch it.