My girlfriend and I only spent one night here since we had to catch an early AM flight back to the US -- but it did the job! SUPER clean and spacious, equipped with everything you'd need (including complimentary snacks/water/juice/coffee). Just note that there are no windows in the room, but that really wasn't an issue for us—and if you're out and about most of your trip, it won't really matter to you either. Right by Termini station. Appeared to be right by plenty of food/drink/ATMs/markets.
Rocco was a very pleasant host and super patient and flexible with our check-in time since we ran into some train troubles. Check it out!