Altough I read some previous reviews, I accepted the room, because it was a last minute option, and a free parking. The position is really ok, 15 min to Colloseum, few minutes to metro station. But, the place itself is not quite what you would expect. It is practically underground so there is a lot of humidity, mold in the bathroom, and it was dirty (the room was ok, but the rest of appartment wasn't).
So, if you require perfect cleanliness, maybe you should search another place to stay...