Mathilde's place is just as in the pictures, the view is awesome and it is in a very quite neighbourhood. Mathilde and Nicolas are great hosts. The first night we arrived late and they waited for us and gave us pasta for dinner. To rent a car is the optimal case because it is up hill but we didn't and we manage just fine with the metro. We would walk down to the metro stop (from the metro stop to Barcelona centre is 10 min) and to go back we used the metro and then took a taxi from the metro stop to the house (around 4 EUR). If you want to have a quite venue for your holidays but still close to the city this is the place!