This was our first time staying at an Airbnb and we were quite nervous about this ( first time in another country as well). From even before arriving, they were fantastic about communication and once there we were given a suggestions of places to eat close by (we chose the restaurant right across the street and it was a hit for our whole family....me, husband, son-13yo, and daughter-11yo).
The actual space was plenty for our family, plus my parents. It was clean and comfortable. We were nervous at first when we saw stairs (my dad has a hard time walking), but there was an elevator to take us up.
If we ever return to Barcelona, we will definitely book with them.