The apartment was nice, comfortable and clean : perfect for a couple on a city trip in Barcelona. The bed is also very comfortable, and we spent 4 excellent nights.
About the location, there's a metro station at 50m, it will take you about 30min to get to the touristic center of Barcelona (placa de Catalunya, ramblas ...) . In the close area of the apartment, we didn't find much to do and we prefered to move to the center.
Natali has been a very nice host, giving us useful advice about how to get to the appartment from the airport
I definitely would recommend this place :)