Great apartment! Bigger than we expected from the pictures. The 3 toilet rooms were useful as there were 11 of us. The location of the apartment is ideal, only a short walk away from the nearest metro station plus a lot of the notable landmarks are within walking distance. As other people have mentioned, there is a security guard at the entrance of the building who will let you know if he wants you to keep the noise down but they were all friendly and helpful. I would recommend this place for any large groups planning a trip to Barcelona :)