Diana's apartment was great. As they say, location is everything, and with it's location less than a minute's walk to the Pantheon, this location can't be beat. We walked to most of the major landmarks we visited including the Colosseum, Roman Forum, and Spanish Steps. We did take a short taxi ride to the entrance of the Vatican Museum, as Google maps said it would be a 35 min walk, but we walked back after our Vatican tour as it's only about a 25 minute walk from St. Peter's square.
The apartment was spacious and clean. The AC worked well, which I have heard is sometimes a problem at other Italian apartments. The bathroom and shower are small, but functional.
Check in and check out were simple. Also, Diana sent us a message upon check in with a list of local restaurant recommendations. We went to several and they were all good. I would definitely recommend this apartment for your trip to Rome. It was a great value for the price we paid.