Story line is good. Character arcs are not well designed, a character reacts on basis of how audience would like to see but not on how it should react on basis of past experiences. Vampire diaries starts off well but eventually from S3, story stops going forward and starts rotating in circles, for example whenever female lead is in danger either Bonnie has a magical spell or Stefan and Damon have solution in their Journals.The only good in this show is The Originals. Finally I would say it is an above average series to watch, only for those who wants to pass the time.