We loved this stay! Everything was super clean and modern. The person who let us in was super friendly and showed us everything we may need during our stay. The airbnb is about a ten minute walk from the metro.
The only things that we noticed were that the apartment would get a little cold at times and the water took a while to warm up after someone had used it previously. The pull out sofa wasn’t very comfortable as there is a large board that sticks out in the middle. The other bed is very comfortable though.
We recommend staying here if you go to Barcelona!