I've watched all versions (including anime) and this one was probably my least favorite. The male lead's acting does get bearable after around ep 12-13 though, so if you can hang in there, have extra time on your hands, and love the story then go for it! This is forever my guilty pleasure series though :')
Unlike most of the comments here I'm super happy Park Hyung Sik finally has a lead role! But...are you guys sure? He's on the side of the poster and Ji Soo is in the center .-.