We never met Gemma but everything was just as stated on airbnb and the apartment was lovely and in a really great area - it was quiet but still very central, we were able to walk everywhere we wanted in Barcelona. On top of that the Barcelona tour bus had a stop very near the apartment. We were only 5 minutes walk from the El Born area which we loved, with many individual boutiques, bars and restaurants.
This was our first visit to Barcelona and we loved it - Gemma gave us many helpful hints and recommendations for bars and restaurants before we arrived which was very helpful.
All in all a most enjoyable stay in a wonderful city