Isa met us that night to give us the key and show us around the apartment. She was very nice and friendly and offered some recommendations on places to eat. She even went downstairs to get us juice and cookies. The place is clean, but the bed was super hard, though mattress firmness is more of a personal preference. This particular apartment is also set up with windows only facing a central open air shaft in the building. So the room lacks natural light and can get a bit warm. Nevertheles, we didn't stay much inside the apartment since we were busy exploring Barcelona, but for our needs, the apartment was pretty good and it's only about a 15 minute or less walk to the Sants train stations.