The apartment is simply huge. You actually walk from side to side. There are 4 big bedrooms, and a fifth nice bedroom. The living room is nice, and the kitchen is very good for people (Like us) who cooks most of their meals.
The apartment is by far more beautiful and spacious in real life than in the pictures, although maybe not enough light.
The location is the best that can be, walking distance from every were.
The hosts are very nice and available, they have office and emergency number.
It is not a very quite apartment. There is life in the street.
Also if the neighbor upstairs decide to turn on the TV, then you have to knock on his door and ask him to close it.
But in general, as an apartment in the middle of the city, it is OK.

We were two families in this apartment, 4 adults and 4 children,
and had a great time in it and in Rome.