First of all - the idea for the plot was really great; but it wasn't developed in 100% proper way. Sometimes I felt like the backstories were more interesting that the main story. The love story progress was kind of messy and at times it felt more like a brother/sister relationship to me. Ha Ri's character, even though the actress did a great job, was sort of boring and predictable; she didn't add much to the drama. Her relationships with parents/step-parents/love interests were a big mess. Other supporting characters' stories were great though - especially Siwon's one. I'm not the biggest fan of Hwang Jung Eum's acting. She's a bit too much for me - this time it wasn't THAT bad, although it made me cringe from time to time. Park Seo Joon started off as a typical, cold, flowerboy-ish character, which isn't really my cup of tea and doesn't really show his acting abilities, but later on when his character changed a bit - it was really pleasant to watch. He has a really cute smile and is great at acting adorable and goofy. SIWON THO - the most shining part of the whole drama. It made me feel like even the producers and writers didn't predict how great his character would be - which led to the feeling of him being more important than the Seo Joon's character. His scenes were more meaningful and symbolic and he kind of just eclipsed the main characters. The Most staff had its better and worse characters: shout out to Shin Dong Mi as the fashion director - it was a minor role, but it was really warm and perfectly created. The worst character was Ra Ra - throwing random phrases and acting all exaggerated is absolutely not my type of humour. Park Yoo Hwan and Shin Hye Sun's roles were also a great addition to the whole drama. The OST is really good - and while I don't think I'm gonna download the album and put it on repeat - the songs sit in your head for quite a while after watching another episode; especially Siwon's You're the Only One and Kim Min Seung's Thumping. I rarely rewatch whole dramas; sometimes I just go back to certain scenes (like I did with Coffee Prince or Reply 1997) and this time, the only parts worth rewatching are mainly Siwon's parts - he did a really great job and should definitely receive some kind of award for his portrayal. Overall - it's not a bad drama and I've watched it whole since I was up to date with the episodes (always watching next one right after it aired); but if I had started watching it later when all of the episodes came out, I don't think I would have watched it all.