What has already not been said about this show? I was expecting to be disappointed by it as there is too much hype around this drama and that always leads to a rise in expectations. However after completing it, I can say that I totally understand the hype but not without its issues.

I will start with the good:
-Honestly at the heart of the show is the bromance between the Goblin and the Grim Reaper. They have a definite backstory and a connection that we see blossom as the two rely on each other and grow fond of one another.
-Grim Reaper. Yes. That is it. With the most interesting character arc, all the plot lines surrounding him were the most engaging and I would always look forward to his scenes.
-The romance between Sunny and the Grim Reaper is heartbreaking and endearing. They have great chemistry and I could totally see why Touch your Heart was made after this show.
-Strong supporting cast that added to the drama instead of working as an unnecessary filler. Each character had something to add in their own way.
-The humorous parts were well-placed and would help bring a lighter tone after heavy scenes.
-OST. The show is known to have a great soundtrack and it honestly contributes in making this drama better.
-Spot on acting by each member of the cast.
-Last but not definitely not the least, its outstanding cinematography. The colors and locations are just super pleasing to the eye.

There were certain illogical points in the plotline but I won't include any plot-related point in my dislike area. Now coming to my share of problems:
-THE MAIN COUPLE. Just like a few others have mentioned, the age gap here is very hard to ignore. And no, I am not referring to the age gap between the actors; the fact that a 900+ year old Goblin falls for a high school student just did not sit well with me. Their relationship at many points seemed more like a father-daughter duo, with him patting her head, buying her gifts as she squeaks and gets excited, telling her to be back home early and on time, paying for her meals- the list just goes on. It certainly did not help that Eun Tak was written as an innocent, bubbly young teenager and the 'wise' Goblin too lost all his composure around her. The actors of course nailed their parts so this is not on them but just on how the central love story was written. Even till the end, the weakest link for me was their romance plot line. They did have their moments, but that left a very temporary smile on my face unlike the second couple.
-Repeated scenarios, too many flashbacks and heck lot of slow motion shots (particularly between the Goblin and Eun Tak). I know all dramas have these, but this one takes it to another level.
-Lack of screen time for Yoo Duk Hwa and Sunny. These were two very interesting characters which in spite of being a part of the main cast were underutilized in my opinion.
-A lot of the essential and heavy stuff was revealed and given light to after episode 10 (with earlier episodes having repeated scenarios and flashbacks as mentioned above).

One might wonder in spite of not enjoying the main romance how could the rating still be an 8? Well even with my personal problems with it, there were many factors that kept me going and I was invested in the show. I was also very pleased with how the show ended. If you want to watch, give it a try. But if the main couple's interactions bother you in the start, it does not get better. If you can get past it, then there is the epic bromance and the second lead's love story. If the romance fits your bill, then the show will be extremely enjoyable for you.