The place near the train and bus stations. It's also rally close to Vatican City and you can visit a lot of beautiful places from there. It's really comfortable to have a short stay in Rome and to really enjoy a lot of places and things.
The place has the basic stuff such as: kitchen, coffee maker, water heater, TV with cable, Wifi and shower with hot water. This is the real proof that you don't need luxury to enjoy a trip to such a beautiful and historical city.