We liked Irene's apartment very much. It is perfectly situated in Poble Sec. The Metro and the bus station are only a five minute walk away, so you can get around Barcelona easily. You also have supermarkets and tapas bars close by - still it is a quiet apartment and you can even sleep with window open at night.
The apartment itself is clean and well equipped. We especially liked the small balcony.
If we come to Barcelona again, we would definitely opt for this apartment again.