This one is a scam. Not even worth 1 star. Although it shows here a hotel but actually one of old style apartment building and it's operated by another hotel next door where you do the check-in.
The room is so small and dark. The bathroom is also super dark and no light at the shower place.
Although the staff is nice and helpful but really bad experience with this so called "3 star hotel" - worst than a motel.
The only good thing is very close to Roma Termini station.