I would highly recommend anyone visiting Rome to stay in Angelo's apartment. It's just a 10 minute walk from the Colosseum - which is a great way to start your site seeing trip. It is also in a quiet area, so you are comforted to know you will not be bang in the middle of a busy and noisy neighbourhood, full of tourists!
Angelo has a double sofa bed in the living room so there is plenty of room for 4 adults.
Angelo was also very helpful and arranged for a taxi to pick us up from the airport and to take us back which was Euros 50 each way. If I ever come back to Rome, I will definitely be staying staying Angelo's!