Ruben's place is great! The apartment is very clean, spacy and it has everything that you need for your staying.
Our plane landed very late, so Ruben offered us a ride and it's not very far away from the airport.
The center is about 15 minutes away from the apartment with bike. We rented bicykles for 3 days and we saw almost the whole city ( all places that we wanted to see).
For everything that we wanted to know, we asked Ruben. He gave us good advices about food, renting a bicycle, buses, metros etc...
The grocery stores are all around in the neighborhood.
I really recommend Ruben's place to stay.
Thank you Ruben for everything!