Great location in the Eixample area! Francesc and Judite were very responsive in their communications and graciously stayed late to check us in after our flight was delayed and we arrived 2 hours later than expected. Communication was a little difficult for us because we don't speak Spanish and Francesc and his housekeeper Judite do not speak English, but we all made due with patience and google translate.
The apartment was clean and the kitchen and living room were very nice. The deck is lovely. We did not have issues with complaints from the neighbors as others have noted, although there is noisy construction going on in the next door apartment. Just be aware that this is really a 3 bedroom apartment which comfortably fits only 5-6 people in actual rooms with doors. To fit more people, you must use the pull out sofa in the open living room downstairs and a small bed in a hallway, but this is awkward, cramped and without any privacy. The additional bed in the listing is a small pull out chair which is useless as it's location is so cramped that unfolding it it would block anyone from entering or exiting two of the bedrooms or entering the hallway bathroom.
The master bedroom has a very strong stale cigarette smell which did not dissipate over the 10 days we stayed, despite leaving the balcony door open all day to air it out. We also removed about a dozen chemical scented air fresheners around the apartment due to the strong scent, but some additional ones appeared to be in locked cabinets. Beware of the glass door in the upstairs hallway. My wife ended up with a black eye when she got up to check on the children at night and our children had a few forehead bruises as well from walking into them at night. There was also an annoying problem with about half of the door handles falling of, but I believe that was going to be fixed just after our stay.