We didn't meet Gemma and Alex but a very sweet lady let us in the apartment. The apartment is very nice with everything you need and they have done a great job leaving maps, recommendations, etc. It is quite the uphill walk from the metro but only bad when carrying luggage! The apartment is in a nice neighborhood, but a little out of the main city it seems. We arrived late and struggled to find somewhere to eat at the time (around 9pm). We found a few delicious bakeries around the area :). Also nice was the Orange juice and water left in the fridge for us!!