Andrea was a really great host, and his apartment was very nice. Andrea provided us with maps and pamphlets with directions to get to the prime locations in Rome. He also provided us a laptop to use in his apartment as well as a cell phone to make calls in case we ever ran into trouble (fortunately, we didn't have to use this).
The apartment itself is located near Vatican City and is surrounded by a bunch of bus stops to get into the city center. I would highly recommend staying here.