Literally 5 minutes from Roma termini station, using Masala uscita/exit.
On the way to the place you cab buy food, fruits, coffee.
Receptionist is very nice, warm and welcoming. She speaks several languages.
Towels (2 euros) are not included in the regular price paid via Airbnb. At least in my modality of travel: solo traveler, one night, one bed in a shared room (other 4 beds). This was not mentioned to me when I booked on Airbnb or later by the receptionist, whiledoing the check in.
It can be uncomfortable when you arrive late and tired in the evening (not only for the check in, after having done that)... and have no cash, or even worst the receptionist is gone.
I suggest you to talk about the towel since the moment you check in, so you can pay the 3 euros and get 1 towel, so every is fixed and runs smoothly.
It can happen that they put you in a different flat. Even if they say that it's the same building, is not the same gate, place/floor but around the corner. If you are going by taxi to avoid walking with your luggage, it could be enjoying to know at the last minute that you have to walk and to carry your luggage anyways after releasing the taxi.
I suggest you to verify this with the receptionist, before dropping off from the taxi.
Perfect for groups and girls traveling by their own.