It's definitely worth watching full of emotions joy friendship.
There have been so much hate towards the ending of do do sol sol la la about juni faking his death and all that, yeah that was kinda immature, but somewhere i can understand him, when I wasn't well and ill I seriously had such thoughts and just wanted to erase my memory and existence from life of m loved ones. Knowing this that you may leave them alone sad and broken is painful but when they see you ill, it's even more painful, and somewhere in world many people are going through such struggles. So don't spoil the joy of whole drama because of ending. If we give it a deep thought it's understandable from heart, so please don't show so much hate to the drama. It really deserve spotlight. Also it's kdrama world, anything can happen. Hehe peace