Luca's big flat is indeed a good size for two couples. It's less than 5 mins walk from the Vittorio Emanuele metro station, which is only one stop from the main Rome Termini railway station. Luca kindly let us arrive a little earlier than the usual check-in time as we had an early flight and was there to greet us, explain how everything worked and marked everything we needed to know on a map including good shopping and eating areas. Thanks also for the welcoming bottle of wine.
The wifi worked well and the beds were comfortable with plenty of storage space in the rooms. The flat is within easy walking distance to many attractions and landmarks.
Our only suggestion for improvement would be to invest in microwave oven (as there is no oven of any type) and an electric kettle (as we had to boil our water for making tea on the gas ring). Otherwise it was a great base from which to explore Rome.