Vaishali is very responsive, we had the heating system not working and she arranged to send his husband the same night (very late at night because I called her late as well) and fixed everything the next morning. She was always checking on us and if we needed the apartment to be cleaned. We also got a complementary cleaning from Vaishali (very nice of her).
The apartment is very cozy and comfortable, we were 2 adults and 3 kids and we stayed for 19 nights. The location is perfect, in front of the building you have a tram station and just 1.5 block away the metro station. A big shopping center is 2 blocks away and lots of restaurants, bars, patisseries, etc. I would definitively stay in Vaishali's apartment next time I go to Barcelona.