I stayed in the apartment for 5 weeks and it was a great experience! The area is very nice, with a lot of small shops and nice bars nearby and not too touristy. There are a few supermarkets in a couple of blocks from the house and very nice small bakeries with fresh bread and pastry. Very close to two metro stations, and there's a bus stop in 50 meters from the house, but as the weather was warm and sunny I was mainly walking everywhere and the location is perfect, cause it's situated in the middle of everything. So in average it's 20 mins to get on foot to Sagrada Familia, Parc Guell or Placa Catalunya.
The apartment is just perfect, very luminous and clean, with everything you could need during your stay! The host is very attentive and caring, it just started getting warmer when I moved in and she brought two sun chairs for the bigger terrace which was great. Also wifi works fine, I needed it for my work and it never failed.
Overall, it's one of my best experiences on airbnb and I'd recommend it to anyone without any hesitations!