We loved the apartment itself - spacious, elegant, beautiful. And it's a wonderful location, on the Paseig de Gracia. It was an easy walk to almost anywhere we wanted to go, and very enjoyable to walk in this beautiful city.
I missed an email from the host, Eike, that explained that there was work being done on the building and there was a scaffolding and screen. (My fault for missing it.) The email said that natural light filtered through the screen, but when we got there it was rather dark because there was also a blue advertisement (for Vueling) on top of the screen. Also, the description said we would barely know that work was being done, because the workers would try to work away from occupied apartments, but on several mornings we were awakened at 8:30 am by very very loud sandblasting right next to the apartment, and there were workmen climbing on the scaffolding outside our bedroom window. The host was very responsive, but he had no real ability to change anything so this situation wasn't as it was described in the listing. I think it would be better if people knew. I'm mentioning this because anyone who wants to rent this place should just keep this in mind. I believe there was a reduced rate (I'm not sure by how much), but it was difficult with the intense noise and lack of view - 2 of us were attending the Primavera Music Festival and so arrived back home at about 3am and needed to sleep past 8:30 am. On the last few days, the blue advertisement was taken down and although the scaffolding and screen were still there, the screen that remained let a lot more light through and you could see a filtered view of the Casa Battló across the street and up the block (beautiful).
Bottom line: A beautiful apartment that I would love to stay in again, assuming the outside work on the building was finished!