Marco's apartment is a very special place to stay - everything is so clean and comfortable, the area is so friendly, it is not much more than 10 euros to catch a cab to the inner city if you are in a hurry, and it is right near the amazing Appia Antica and the historical sites along it, where we did some great bike rides. For us, this was the epitome of what Airbnb offers that hotels don't - a great host, a window into how the locals live, excellent local food, and all at a great price. Very highly recommend this as a base in Rome if you don't mind a 15-20 minute ride into the city when that is your destination - we were very tempted to just stay local though!