Kudos to Mireia for checking us in after midnight. It was very kind of you :) Now on to the apartment. It's pretty spacious and stylish, two blocks away from the beach. Several good restaurants in the area, including two downstairs.
The area is lively, so expect noisy parties in the restaurant downstairs in the evening and on weekends.
Public transportation is easily accessible: there are two tram lines a few minutes away. A bus (number 19 IIRC) that goes to and from the old city stops right in front of the building.
If you are looking for options near the beach, I'd definitely recommend this one.