I would highly recommend Andrea's place. He was a great host. He met us at the loft to give us a tour when we arrived. He had a map of Rome for us and circled all of his recommendations, providing very helpful directions. The location was VERY central to all major Rome destinations and we walked everywhere. Also, the loft had a bunch of small touches that were very thoughtful, such as a book of local restaurant recommendations and an espresso machine. It was a perfect place to stay in Rome.