We had a great stay at Mario's. He left us the most delicious red wine I've ever tasted, basket of fresh fruit, and great continental breakfast foods. Although his place isn't in the center of Rome it is extremely close to the metro, and we found it easy to connect. Unfortunately we didn't have the pleasure of meeting Mario, but I think it was due to the change of times me and my friend said we would be coming. Which...he was exceedingly flexible with us, allowing us to show up much later than we had first proposed and providing us w gluten free options for breakfast at the very last minute. I recommend Mario's place for anyone wanting a clean, artistic, and easy access to and from many sites in Rome :) Thanks Mario!