Monica was fantastic! The place we originally booked cancelled on us 30 minutes before our booking and Monica came through for us at the last minute. She met us at the apartment within 30 minutes of booking on the app. And when our next Airbnb was totally inflexible with check in time, Monica let us check out super late! She was also very communicative throughout our stay.
As for the apartment itself, it was clean and comfortable. It also has a huge roof terrace with 360 views of the city. It's very centrally located in Gracia near plazas, bars and restaurants.
Highly recommended!