Marta is a wonderful host, very welcoming, warm and helpful. She will explain you everything you need and communication is very easy to organize arrival and departure.
The apartment is exactly as shown on pictures, very clean, quiet and well equipped, very close to the central green metro Line.
It was very hot and humid in Barcelona during our stay and the con air was a real plus. As for our children, they were very fond of chocolate caps !
We liked the neighbourhood, apart from the touristic flood (except in Park Guëll of course).
Marta allowed us to use the parking a couple of hours after checking out time, which enabled us to achieve our visit of Barcelona without moving our car (full of luggage).
I would recommend this apartment without any hesitation !