Viviana is a great host, very helpful and polite. The apartment was also really nice and clean, we can't really ask for more. We had access to towels, drinkable water, and a fan there and basically everything. Its also conveniently located just next to a bus stop so it was easy for us to reach there even late at night.
Viviana also let us store our luggage at her place for the day after checking out, since we wanted to go around Barcelona. She's very polite and helpful. I would recommend the place.