It was a cute drama and overall good, the story was nice and it was quite short so you were done with it pretty quickly. I did find the ending a little bit rushed because the drama was this short.
However I really loved that the four male protagonists were from different kpop groups and the concept of fans kind of 'choosing' the ending. I also loved the editing, it was very cute and I can probably never unsee Jaehyun as a puppy now.
It was overall really nice and I might rewatch because it's so cute and pretty short.