I loved this show so much. I think I've watched it more or less 3 times now. The acting was fantastic and the chemistry between all of the characters (not just the main 4, but all of them) was so much fun to watch. I'm a fan of the old tv show MASH, which took place in a similar type situation. In that show, as well as this one, you came to care about all the people on the base. Not just the main characters. That's the way it was here too. While I loved the story lines/love lines between the four main leads, I also wanted to know about the stories of all the other nurses and doctors as well as the other military personnel. At times, if felt almost like you were watching a family drama because of the way the characters interact and care about each other. Plus there is SO MUCH ACTION in this show. Whether you are a fan of fist fights, chase scenes, battles, rescue operations, or disasters, this series has all of that and more. And I can't forget the humor that is throughout the series. I love dry humor and there is a lot of it here. To me, this is a great series with which to introduce others to K-drama. It has a bit of everything for everyone to enjoy.