Upon release, 19 received generally positive reviews from critics, who praised the singer's vocals and noted her as having the "potential to become among the most respected and inspiring international artists of her generation." 19 also won and was nominated for numerous accolades including a Mercury Prize, and the Grammy Award for Best New Artist.
Ved udgivelsen modtog 19 generelt positiv reaktioner blandt musikanmelderne, der roste sangeren vokaler, og skrev at hun havde "potentiale til at blive blandt de mest respekterede og inspirerende kunstnere i hendes generation." 19 var nomineret og vandt adskillige priser heriblandt en Mercury Prize og Grammy Award for bedste nye kunstner.