We stayed here for three nights as a weekend add-on to a business trip to the area. The apartment is very much as described, with a wonderful rooftop view of the Sagrada Familia from all windows. Recently remodeled, well-equipped, very clean, quiet, and designed to take full advantage of the space, it is obvious that the owners have put much thought and care into making this a great apartment. Helpfully, there is a large tablet computer mounted on the wall, pre-loaded with useful links for the visitor...very useful, and something other Airbnb hosts would do well to emulate! There is also a smartphone, available for guests to use when away from the apartment, loaded with apps specific to tourism in Barcelona. More traditionally, there are some paper Lonely Planet guidebooks available as well.
Enric met us upon arrival at the apartment to turn over the keys answer any questions, and explain how everything works. The owners are available by text if needed, although we never had occasion to contact them. They met us again upon departure to make sure all had gone well and help us on our way.
Guests should be aware that the apartment is accessible only by climbing the stairs up five floors -- the price of a rooftop view! -- and that the bedroom loft has a very low ceiling, high enough to allow sitting on the bed, but not to stand. This is a place for those in reasonably good shape.
There are many shops, restaurants, and bars in the neighborhood, even a couple 24 hour convenience stores, and the metro only steps away. Due to the proximity to Sagrada Familia, the neighborhood is a bit touristy, but not exclusively so, and walking only a few blocks in any direction will get you away from all that.
We would be remiss not to mention the excellent service provided by Xavi, one of the recommended taxi drivers. We had emailed him less than two hours before arriving at the airport, but he was there waiting and effortlessly​ whisked us directly to the apartment, and had contacted Enric to let him know we were on the way. Given our fatigue, jet lag, and heavy luggage, it was a godsend.
All in all, highly recommended as a base for exploring Barcelona.