Perhaps not the most amazing season but this was due to the writer's strike. It was still great however as we were introduced to many new characters such as Lexie Grey, Meredith's half sister, Erica Hahn, the cardio surgeon that replaces Burke, as well as Nurse Rose, who plays Derek's love interest. Definitely lacking in those famous moments that Grey's in renound for but the season finale simply is astounding and will leave you wanting more.