There are so many good things that I have to say about this drama. The prime reason why I started this drama was because it dealt with computers and all things technological, which I love. Also, the drama doesn't try to insert romance between the characters. Romance elements are implied but it is more to provide comic relief than anything. What makes Ghost different than other dramas in the genre is that it essentially focuses on one case. Keep in mind that a few cases in the middle had little to do with the main case but these episodes give more insight to the characters and their lives. I'm going to be honest, I was expecting the ending to disappoint me but it did the exact opposite. In the last two episodes, everything comes back full circle and doesn't leave me feeling like something was left out. I really appreciate how flashbacks were used in the drama. They were not only used to refresh the mind about what already happened, they were also used to show things that the viewers have not witnessed at that point. Typically, villains are the most hated characters of a drama. In this drama, I wanted to hate the villain but that was so hard to do. The way that the story comes about in revealing the villains motives for everything kind of had me feeling sympathetic. The actors in this drama were really spot on in delivering and executing their characters. At first I was skeptical about So Ji Sub's acting because I have not seen anything with him before so I was expecting him to just be a pretty face with no substance. I am happy that I was wrong. SJS was able to pull off playing one person with two different sides. Uhm Ki Joon did a wonderful job playing Jo Hyun Min. Whenever his characters would get that sense of accomplishment it would just send shivers down my down.SJS and UKJ really fed off each others acting in heir scenes together which I loved. The supporting actors added to the synergy. Ghost unlike some other dramas utilizes its supporting characters to its full advantage. The writers really know where they were going with this drama. When something is only referenced in simplicity in one episode, it comes back in another episode and is explained in full detail. One thing that I felt that the writers of this drama did wrong was deviating from the initial case and getting involved in other cases. However, this is only a minor technicality since it kept with the same flow of the other episodes. The music in this drama, solidified my love for it. Sometimes music in a drama makes me wonder why it's there because it doesn't fit the flow of the drama. Ghost does the exact opposite, the music complements both the writing and the acting. The one dislike that I had with the music was that "Burn Out" song that plays at the end of the first few episodes annoyed me a little bit. However, it does appear near the couple of episodes near the end but more as motif when hacker mode is in play. In future, I do see myself watching this drama again. Not all 20 episodes but a few episodes here and there since some episodes near the halfway point were boring to me.