Okay, let me start off by saying that I did not finish this drama; however, I think I have some very valid things to point out, which might help others ultimately decide if they want to watch it or not. 1. Story Okay, I will be 100% honest, I really think the story-line to this drama is really intriguing. I think that it has many elements that are not cliche and can be found very enjoyable. I was constantly wondering when and how the story would develop and couldn't wait to find out more secrets behind the virus. 2. Actors I will once again be completely honest. I think that most of the actors in this drama did wonderfully. I think since Ahn Jae Hyun us a relatively new actor that showed a bit and I personally have never been able to stand the acting of Gu Hye Seon; however, I think there are those who do not mind her acting and have nothing further to say about her. Anyway, the other actors did an amazing job. Whether it was from the hospital patients to the doctors and nurses, there were mostly good and great actors. 3. Execution With everything seeming really good, some of you might want to hop on over to your favourite drama site and start watching this right now, but I have some bad news. While the cast and story are good, the execution is not. There are scenes that are extremely slow and draggy because of the way the directors chose to portray certain scenes or moments. Some scenes that only would require one or two minutes to get the point, seem to drag on for at least ten; while other moments leave you confused, because something important was glossed over too quickly. 4. The Hype and the Hate Honestly, this is one of the many dramas that can go either way, you either love it or hate it. Honestly, I think there's a reason why. I'm not claiming this to be the truth, but I have seen this happen again and again on many occasions and even with myself when I first started dramas. Many of the people who are giving this drama a good to moderate review, seem to be those who have not watched many dramas yet or have only been drama watching for a couple of years. Even when I first started my drama addiction, Panda and Hedgehog along with Full House Take 2 were some of the best dramas I had ever seen. Looking back on them, yeah they were good and cute, but there were so many more that were just, better. As for the ones who seem to hate it or don't understand the hype, they are mostly what I would call veteran drama watchers. Those who have seen enough of the older dramas to recognize who the supporting roles are and can even tell in what drama the set has been previously used. These seems to be a majority of the people who can pick out the flaws a little better and were expecting more. Now, not everyone, this is just some of my observation along with generalization, but this might help you decide if you want to watch this drama. If you're fairly new to dramas, you might like it. If you're a long time drama fan, you might not. Anyway, I hope this can be of help. for my 2017 drama resolution, instead of resolving never to drop a drama, I am resolved to never force myself to watch one.