Me and my boyfriend visited Barcelona at the beginning of July, the apartment is very fresh and well maintained with a cute balcony perfect for a morning coffee. The metro is just a few blocks away so you can easily arrive to the inner city within 15-20 minutes.
The area is sort of "hip" with cool restaurants and a mixture of renovated old factories with newly built office buildings. Very quiet at the evening/night even though the bars and restaurants are just a 5 minute walk away.
Would definitely recommend this to any couple visiting Barcelona!