Ann-Veronique's apartment is wonderful! We stayed there from 2nd to 5th November.
The apartment is huge! With 2 bathrooms, a well equipped kitchen and fantastic location: very close to a metro stop, short walk to passeig de Gracia, there's a supermarket across from the apartment, as well as plenty of eateries.
Romina and Alicia, those involved in managing the apartment, were very helpful and provided us with a huge list of restaurants and things to do/see.
Overall, I highly recommend staying in this apartment.