This episode is the closest Grey's has gotten to replicating the early series since before season 14. The return of Kate Walsh as Addison Montgomery was one highlight of the episode, but in my opinion, the other storylines with Zola and Simone's grandmother were the most engaging. The subtle return to the early atmosphere of the show can be seen in Levi's interaction with the interns in the locker room, as well as the entire story surrounding Simone's grandmother. In addition, the way the interns are already starting to form relationships with one another shows the writers are rediscovering the importance of developing new characters. This episode opened several opportunities for deep, heartfelt storylines, which hopefully will be explored in the upcoming episodes.