Rafa is a great host: very friendly, responsive, and helpful. The apartment matches the description, spaceful, with high ceilings. The park and public transport are 5 minutes walk, bus takes you directly to Oceanographic, Science museum, Bioparc, Gulliver - which are the major points of interest for those with kids.
The place is comfortable, but there is a little smell (opening the balcony and windows helps); it didn't bother that much, though.
In general, it is becoming quiet during nights, just once it was some party at neighbors until early in the morning but otherwise it's very calm.
My daughter and I enjoyed our stay. Thank you very much to the host!