I totally recommend this apartment and elena. This is not the first apartment I've stayed in in barcelona but it was certainly the biggest and nicest. Loads of communal space so that my friend and I didn't feel like we were tripping over each other. All the amenities you would need and of course the much mentioned wonderful greeting from elena with nibbles and a drink.
Elena is a great landlord- she was communicative and checked in via what's app with us through the holiday- did we need anything- is everything ok. She also very generously allowed us to have a late check out- which was really helpful.
The flat is in a quiet street- but so close to the vibrant squares of Gracia. Minutes from diagonal metro station and a cracking restaurant at the end of the street Santagula- not the cheapest in the area, but certainly the best.
I will definitely be staying here again.... If it's available.... I imagine Elena's flat is very popular.