The apartment is really well located - we walked everywhere from there: Pantheon; Colosseum, Vatican, Trastevere; Trevi ; Jewish quarter to name a few.
The apartment is on the 6th floor but the small elevator works fine.
Having the roof terrace was great in the evening.
The shared kitchen is very small, but we used it only to make hot drinks, so it was OK.
The bed room itself is not cramped and there is storage space for clothes. The bathroom looks newly refurbished and of a high standard.
We enjoyed the views from the apartment.
Cristiana gave us some ideas for eating but we just wandered around and found places - there are lots and plenty of action, especially in Trastevere.
We caught the train then bus from the airport. Bus 70 didn't work for us as they were so infrequent, so we caught 64 and walked an extra 100m.
It was also a bit unclear where to buy bus tickets - train is easy, a machine in the airport. Bus was little booths outside the Termini station - they look like they are for bus tours, but sell regular bus tickets too.
Cristiana booked us a car to go back to the airport as we didn't want the uncertainty of buses - that was great. Lovely driver and car.
All in all we had a great time in Rome and loved the apartment.