Me and my two friends loved staying in Giovanni's flat. It is located a short walk from the Colosseum and is also only a few minutes walk from metro stations for both the A and B lines that run through the city. There are also lots of popular bars and restaurants very close by (pizzeria Luzzi is a particular highlight - a unique dining experience that is also cheap and very tasty!)
The street that the flat is located on is nice and quiet and the building is very safe and secure, with multiple locking doors and gates before you reach the apartment itself.
The apartment is beautifully arranged with two bathrooms (both with showers) and three bedrooms that all have lots of space and very comfortable beds. There is also a fully equipped kitchen and even some food, coffee and condiments available for guests to enjoy.
The checking in/out process was all very well handled and made as easy as possible for us (we were able to drop our bags off at the room when we arrived despite the fact that we were around 3 hours earlier than the standard check in time for the apartment). Giovanni also messaged me several times throughout the trip to make sure everything was going well with our stay.
I had a great stay in Giovanni's flat and would definitely recommend it to anybody else travelling to Rome!