The overall was ok, in terms of location. Over our late arrival, we were welcomed by Giancarlo's assistant who is a nice person.
If you need to work during your vacations on laptop or you do need wireless at home, this place won't be a good choice. You keep losing the connection,at last we stopped trying.
If you come to Rome mainly for history, the location is very good, but if you like to be in the mid of lively Rome evenings, it is better to stay around Trastevere. The place is 10 min walk to the colosseum metro, 5min to tram as written.
The other point is as it is a vacation rental but not a hotel or used except the guests, some stuff was not cleaned in detail. (To heat the pizzas inside the oven, also kitchenware for inst.) On the other hand, it looks clean when you enter.
And unfortunately there is no duvet cover but a thin bed sheet between you and the duvet, so you need to share the same down duvet with other visitors.