As others have noted the location of Virginia's condo is perfect for exploring this charming city. It is within easy walking distance to restaurants, sights, tapa scene, parks, and public transportation. The metro, Renfe and bus system in Barcelona is second to none. ( if arriving by train, take the Renfe to Catalunya. Not the metro........the 10 trip or multi day pass is good on all 3 but the Renfe is much, much easier with luggage). Virginia's condo has everything but natural light that you will need. It is better than the pics! The only issue and it was very minor. There is no way to completely eliminate light, noise, etc between the living area and bedroom. No worries if you both get up at the same time but I am generally awake earlier so for us it was a bit annoying. We plan to return to Virginia's place the next time we are in Barcelona so it was by no means a deal breaker.
One suggestion: Give Bar at Sant Pere a try. We went in for a b4 dinner drink and ended up spending the night. Terrific food and drink. Small, cozy and friendly!