Good place to stay for two people, too small for more than that. Francesca assisted us with the check-in which is mostly done online and works very well. Appartment was clean and has everything you need for a short stay in Rome.
Walking distance to the Vatican, Pantheon, etc etc.
Negative things:
Bed was not very comfortable
Windows are thin, you will hear the noise from the street (mostly during evenings) so if you're not an easy sleeper bear this in mind.