Silvia was a perfect host, always available, and very helpful with everything. The flat itself is amazing, with all the amenities, very clean, and beautiful as well. It is located in a perfect neighbourhood, Gracia is full of cafes, restaurants and shops, which are definitely worth a visit, especially in the evening. The flat is perfectly located, very close to metro station, but you can also walk to city centre easily (it is a 20 min walk).
I would definitely recommend this apartment to anyone who is looking for a place to stay in Barcelona, you will not regret it.