The place is great to sleep after a day of exploring Rome. I stayed there alone for two nights.
The apartment has great location, very convinient to explore the city on foot. It is clean and has all necessary amenities. There's living room/kitchen, sleeping room and two restrooms. The apartment is in the basement, so there are no windows, but I personally had zero problems with it.
Note: the nearest meto station Barberini is closed as of October 2019, but Spagna is also not far away.