The location is fantastic, perfect to walk to most of the major sites in Rome.
The rooms are clean, comfortable and functionable.
Our only criticism would be the breakfast, which was low quality with cold eggs & sausages.
And a small thing, we asked about airport transportation options and they offered us a "shuttle" which was more expensive than the fixed fee for taxis in the city. To us it seemed an unnecessary attempt to get a few extra euros out of us.