We stayed only for one night, so did not use all the features. The location is perfect, a few minutes walk from the Colosseum and close to Termini station. Only it is next to a busy street, and during the night there was a party a few buildings down.
Overall the cleanliness was outstanding, apart from the bed. When laying down there was a slight odor coming from the bed.
The breakfast is quite simple, but with some variation (cereal, croissants, rusks, ...), and with a nice Nespresso machine. It was nice it was there, but when in Rome there are a lot of nice coffee bars where you can have a cappuccino and some pastries.
If we would visit Rome again, we probably would look to again stay in this location.