I spent only a night with hubby and 2 children (9 & 6 yo). It's 5 min walking from Rome Termini Station and a good neighborhood walking distance (15' aprox) to Trevi Fountain, Colosseum, Pantheon, etc.
The hotel is a history gem if you appreciate old stuff like I do: walls wallpapered in fabric, heavy baroque courtains, furniture and paintings.
We slept good with AC and blackout courtains.
Bathroom is big and shower decent size and had an awesome shower with plenty of water (great temperature adjuster). Good quality shampu, conditioner, shower soap and hand soap. They also provide disposable shower caps and shoe shiner.
Front desk friendly and efficent to solve anything you need.
Breakfast is the best with a variety of italian pastry, cake, cereal, fruits, juices, bagels, scrambled eggs, bacon, cold cuts, teas and delicious coffee (they come to your table and ask you what'd like and bring it right away as many times as you wish).
Definetely will come back if in Tome again.