How do you answer the Italian phrase 'molto bene'?

Anch'io! and Che bello! are answers to the Italian phrase Molto bene! The adverb and first person singular pronoun in the first case -- pronounced "an-KEE-o" -- may be rendered into English as "Me too!" while the exclamatory pronoun and masculine singular adjective in the second example -- pronounced "key BEL-lo" -- translate into English as "How nice (beautiful, literally)!" They both serve as responses to the adverbial phrase molto bene ("very well") -- pronounced "MOL-to BEH-ney" -- which often occurs in response to being asked how one is.