This was an excellent apartment in a great part of town. Testaccio is full of Romans going about their business and full of quality bars and pizzerias that the locals use. Hop on the 170 bus and you are in the middle of tourist Rome in 5 minutes and Trastavere is across the nearest bridge. The apartment is warm, clean and well appointed and Marco is a superb host who can point you in the right direction for everything.
Enjoy.