This is an amazing place nicely located to access all of Barcelona's amazing attractions. There are two metro lines a short walk away. The host was out of town but she was easy to communicate with before our trip and her assistant met us at the apartment. They even left us a stocked fridge which we greatly appreciated. The building was quiet, secure, clean and had easy access to grocery, markets and dining. The furniture in the main areas was comfortable.
There are a few notes about the room configurations you may find helpful. The largest master room is really a suite of three rooms: the bed area, a full bath with double vanity and another bedroom size room set up as a large closet/dressing area. Both the bedroom and the closet room have air conditioning. The bedroom does not have a door, but there is a door to the bathroom and outside the entire suite area. It worked fine for us, but if you are sharing the bathroom it lacked privacy in the bedroom/closet room for dressing.
The second bedroom has a fan only and a small window to the interior courtyard. The nearby hall bathroom is much smaller than the master.
The third bedroom is very small, containing only a small twin, with no air conditioning and far from the air in the main living space. The adjacent bathroom is tiny, with an unusable shower.
The space was better situated for a family, rather than three adults because the secondary bedrooms and baths were really substandard to the master suite.