We stayed in Killian's apartment for 4 nights in mid-April 2018. The apartment was just a pictured and described on the Airbnb website. Very contemporary, and very well located for walking to many of the points of tourist interest (Gaudi sites, Picasso Museum, Las Ramblas, etc.). Also, plenty of good and very affordable restaurants well with a 15 minute walk. Also access to the L2 Metro line just two blocks away. Taxis are plentiful, and very economical
The top floor location is outstanding for the views, the breezes, and the terrace.
The terrace faces south, so gets the full sun, but there are crank-out awnings that permit you to shade the apartment windows and the terrace during the day, so the apartment and terrace stay cool for the late afternoon and evening. Excellent spot to enjoy beverages and snacks, lunch, etc.
The place has great cross-ventilation, when the window in the kitchen and the windows and door to the terrace are open. Only problem with the kitchen windows being open is the schoolyard below. During the day the high walls carry the schoolyard noise right in through the kitchen window. Good thing we were out on the town most of the day. Things quiet down considerably after the kids go home.
Killian was very responsive to questions and issues during our stay, and was quick to address problems.
All in all, highly recommended.