The house is very well located in a quiet, nice neighborhood where you feel like you are in a small summer town. Still it's very close to the metro and the city life; for example just a walking distance to the popular places like Barceloneta.
The flat is clean, tidy and cozy with a sweet terrace and Monica is the perfect host to stay with. You will like the house and will feel very positive during you time there. And once you are back from your city exploration you will have the chance to quickly rejuvenate to go out again.
I am sure you will enjoy your stay there and will want to come back again.