We stayed in Sven's flat for 4 days and I can not fault anything. The flat was just like in the photos and felt even more spacious.
Its a great area right across from the Placa where people were doing the Barcelona thing of eating , drinking and dancing. The Carrer Verdi around the corner had lots of great shops and restaurants with mostly locals. And the Fontana metro stop was a few minutes walk and connected to almost anywhere. However we often walked to the Placa Catalunya and Las Ramblas, It was about 15-20 min walk but you pass by La Pedrera, Casa Batillo and many other beautiful buildings.
Sven was a great help and very attentive and gave us lots of advice.
Certainly no hesitation in recommending Sven's place