I had a great time in Barcelona while staying in Monica's appartement, she is a lovely host, the room offers enough space for a single person and it was clean, bright and cozy. Due to the citylife outside it was a little bit louder sometimes, but I think you cannot avoid this in a city like Barcelona.
Monica gave me good advice for my daily walks across the city. There is a Metro around the corner and the beach is near,a supermarket as well.
Fully recommended, thank you again, Monica!