I was almost going to add this drama to my list of favorite dramas, but then the ending threw me off so bad. Nevertheless, I really enjoyed watching this, I laughed at lot. To be honest, the inmates and side characters' relationships, as well as the character development are the highlights of the drama. The development of the characters is immaculate. Every character was unique and had their own story, and they did a good job incorporating all that. 

The biggest problem I have with this drama was that they introduced so many characters which also had a lot of screen time but I guess the writer got lazy to end and finish their stories well. There was no follow up whatsoever. The characters that really grew on me just disappeared mid season. There is nothing really exciting about the male lead, I preferred watching the supporting characters. Overall this was just a decent drama, it would have been better if only it had a more satisfying ending. I would recommend but don't expect much.