We traveled as family of 5 people and had a lot of space in this great apartment with many rooms, a kitchen, a dining room and two bathrooms (one with shower, one with a bath shower).
A small elevator helps to reach the 4th floor especially after a long walk in the city. The apartment is in a one way-road which is almost very calm. We loved the comfortable beds. Everything was very clean and in the kitchen were coffee, sugar, salt, pepper, oliveoil and balsamic vinegar and in the fridge some jams. A bakery, delicatessen shop is just around the corner. The supermarket is just 5 min. walk away.
I recommend this apartment which is close to Piazza Navona and Pantheon, but without the noise. Even the Spanish steps are very close within about 10min walk.
Nicola is a great host, very kind, helpful and caring.