Read the House Rules, there are additional charges you will have to pay (our stay got 25% more expensive after these). The place is tiny and the pictures were obviously taken some time ago because it looks tired now. Don't expect to cook, the kitchen is not practical for this and there's very little space to eat anyway. There is no hot water from the kitchen tap. Kitchenware is either dusty or rusty, depending on material. The bed linen feels cheap and was dusty. Don't take much luggage, you'll struggle to find a place to put it. The location is good, but if you're a light sleeper you should know that someone likes to play their music in the street until 1am, at least they did every night I was there. The bathroom was clean and the shower provided plenty of hot water and was powerful, that's the one unqualified good thing about this place.
Overall, I would not recommend this place, would not stay again and feel it is poor value for money even by the terrible standards of Rome.