Ilaria has a great apartment within walking distance of the Vatican. It is also within walking distance of a great pizza place called Pizzarium. You can take one bus (#23) to get down to Trastevere. The apartment is sweetly decorated and very clean. It is modestly sized, so we did have a little trouble getting our bags up in the elevator. (We were traveling with a baby so we had more stuff than the average adult couple.) The stroller didn't fit in the elevator, so we had to carry it up one flight of stairs. We also had a little trouble bathing our daughter because of the way the sink stuck out in front of the shower. But, overall, we had a terrific experience in Rome because we had a very comfortable home base.