I visited Bruno's apartment with my wife and her parents. Our flight landed a bit earlier than check-in (about 2 hours) but Bruno was very accommodating and allowed us to drop off our luggage while the cleaning lady finished up. Bruno lives a couple blocks away so he is always available if you need anything. The apartment is centrally located with various restaurants, bars, disco clubs, and grocery stores nearby. We did a lot of walking during our trip so we took the 30 minute walk to la Sagrada Familia. It's also only a 15-20 minute walk to Las Ramblas, and other museums such as Casa Batllo and Casa Mila.
There a lot of pros about the apartment itself
-Master Bedroom that lets in plenty of natural sunlight.
-Large living/dining area with stylish decor and great appliances.
-Super Clean and stylish
Two minor cons that I should mention:
-It can get pretty noisy at night. My in-laws are light sleepers and there are some party animals living upstairs (not sure if they are permanent residents or Airbnb guests) but they played loud music up until around 3 in the morning which did cause some trouble for my in-laws to have a good sleep. My wife and I had no trouble with it.
-The tv channels do not work properly, with only about 2-3 channels not freezing constantly. Not a problem for me and my wife since we don't really watch TV ever, but my in-laws do. The wifi works great though.
Overall it was a great stay and Barcelona is a beautiful and lively city. I would definitely recommend Bruno's apartment.