Monica's apartment has all that is written and more. It is a cozy place with all the amenities for cooking, cleaning (with a washing machine, iron press). We were 3 people and it was sufficient for us. In fact it can accommodate 1 more person easily and may be 2.
The place has a direct view of Colloseum which is about 4 min slow walking distance. The metro station there has connection to Roma Termini and from there to airport. However we were 3 people and Monica arranged a cab to pick up and drop at equivalent prices.
Most of the places can be reached by walking which is very pleasant and saved time in commuting. That is a major plus for this location.
There is a corporation tax by Rome @Euro 3.5 per person per night that needs to be paid directly.
The elevator is small and can accommodate 1-2 pieces of luggage at a time. But it is not a hassle since the apartment is on 2nd floor.
It was an absolute delight and Monica is definitely a superhost.