I really can't believe how much We enjoyed our stay in Francesco's place. He, his girlfriend and daugther were so cool. The place is beautiful and well connected by subway (2 stations near by) and buses which you can take near Piazza Navonna. We felt our stay like we were trully living in Rome as a roman citizen. By the way you can go by walking to the Vatican but the best is that there are many restaurants close to the place and gelato ice crems (so leave the diet at home).
Thank you very much Francesco, hope to stay again in your place when we go back to Rome in the future...