Pros: We really enjoyed the convenient walk to the metro and to the many eateries below the apartment. There were a couple of nights with live music that gave us a feel for the local vibe. Upon arrival, we received great recommendations and guidance for the city. There were also some snacks and coffee which were thoughtful touches. There were plenty of hangers and storage for our things. All the appliances worked.
Cons: From the photos, and previous descriptions, I had assumed that the patio faced out onto the street. This was good for street noise, I suppose, but we were mostly over the neighbor's patio and that made it hard to relax. Also, I found the neighbor's cat to be obnoxious and I love cats! It yowled loudly and tore a few claw holes in the sleeve of my blouse. Needless to say, the patio just didn't feel as comfortable as others had described it. We were there when it was very hot and I could not sleep. There is an a/c unit, but it is far away from the room, so we had to move the bed closer to feel the air. We ended up sleeping separately. It was exceptionally hot though. The communication was good, maybe too good, we were communicating with two different people both before our arrival, frequently during our stay, and after we left. Since we were on our honeymoon, and enjoying other cities before Barcelona, I would have preferred fewer check-ins. However, others may appreciate having more frequent check-ins.