Small room in a private apartment, for sleeping is enough. We read the reviews before arrival, so we knew we had to let the water drain enough.
The apartment is located near the subway, there is also a direct tram to the Vatican city.
My only complaint is about the surroundings of the apartment, it is quite a dirty neighborhood, but it is not the fault of the lessor.
On the other side of the block is a very nice restaurant which I recommend.