I will ask for you 5 questions to my cousin who lives in Barcelona.
You only pay after full satisfaction.
She has been living in Barcelona for several years. She is a journalist and has co-authored guides to Spain. First time or fifteenth, there's a right way (and a wrong way) to week-end in this city. My cousin will help you get top marks.
Some her recommendations:
Café d'Esiu's shaded outyard, café destiu.com, La Vinya del Senyor, … Generator Barcelonais (in the heart of Gracia) from £42, it's a bargain (0034 932 200377, generatorhostels.com)