We have just spent a week in this perfectly situated apartment. Sha was absolutely brilliant from start to finish! A very friendly and welcoming host who would always respond to any questions very quickly.
The beach and metro were both walkable in under 10 minutes. The beaches were a lot cleaner and quieter here than the more central beaches and we were able to rent a bed for €10 a day so not expensive at all.
There is an excellent little restaurant in the square outside the apartment which serves delicious food and brings a lovely atmosphere in the evenings. After staying on La Rambla last year and being surrounded by tourists it was really refreshing to be part of the local community with a much more relaxing atmosphere. Supermarkets and organic shops were all within 5 minutes walk!
Lastly I couldn't fault the apartment itself at all, exactly like that photos, beautiful decor and very light and open, having two balconies, two bedrooms and two bathrooms - what more could you ask for :)