I'm shocked at the 7.9 overall rating....especially with the TV ratings this show got. This is honestly my top 5 kdramas of all time, and I've watched most of the 8.5+ dramas. Though it does fall off pretty hard imo after episode 13 or so, before the writers barely save it (I personally would not rewatch episodes 14-18... the writers should've just ended it at episode 13 and put in an epilogue or something). I guess having a great end is more important to people than a great overall drama. Funny, action-packed, romantic, thrilling drama. Sometimes a bit too much flashbacks, but overall an awesome drama. There were episodes where you simply can't believe how much cool scenes got packed in. Even by episode 13 or so, you'll feel like you've been through an entire drama worth of tension, laughs and tears. The entire cast is awesome, especially the leads Tae Hee and Joo Won. The supporting cast are all familiar faces in kdramas. Some incredibly cool (and expensive) action scenes. Great for someone interested in medicine (but not so nitpicky about scientific details). Highly recommend!