The B&B Flavius offers 3 double rooms, 2 with WC/bathroom, and 1 room, with a double bed (140x200) with shared toilet/shower. We have spent 3 nights in the the smallest room, that was sufficient enough for our needs. The shared toilet was actually only shared with staff (the owners of the place), and therefore was actually as we were hosts at someone's place :-) Very clean, and very nice staff. We have only met Riccardo who was very nice and helpful. The B&B is about 7min walk from a metro station, in a street with a narrow side walk (as it is very common in Rome), and about 15min from the main entrance of the Colosseo. The room window head the back of of the building, and so the room was very quiet (traffic can be an annoyance in some places of Rome).
The place has also a lovely terrace that with warm and sunny weather might be a spot either for breakfast or late afternoon.
We had access to internet, wireless fast connection. As it a B&B the hosts are asked to arrange for they arrival, and the staff is contactable in case of changes.
The street where the B&B is located is a very long street with a lot of restaurants in the vicinity, bars, a pharmacy, 2 cash points, a flower shop, ice-cream shop, ... mainly located on the end heading to Colosseo. Accessible by metro and also 2 bus lines.
Would not recommend it to people with limited mobility.
Only 2 buts:
a) shower of the shared WC is quite tiny, 60x60 cm...it can be rather uncomfortable for a big person.
b) the room had 2 glass bricks on the wall, facing our faces in the morning... in case of sun you are awaken very fast and might think you missed to turn out some light in the night before. Aggressive way of getting up, but well it was bearable.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC