Our experience here was mixed.
The location of this flat is super close to La Sagrada Familia, and there are lots of cute restaurants and cafes nearby.
The flat itself wad impersonal and not well represented by the photos. The folks who rent this spot have a bunch of other places in the city. So even though it was spacious, it lacked charm, and was heavily used without being heavily cleaned.
There were extra pillows, but no extra pillow cases; the one spare blanket was covered in unwashed food stains (as was the furniture); and while the large bed was comfy, the small bed I slept in felt like laying on a box filled with metal springs.
I have an Airbnb if my own, and work very hard to accurately represent my space. It was disappointing not to find that to be the case here.
That said, check-in was easy, and when we had trouble with the heater, the response was quick.