The room is ultra clean, really tidy, spacious and a really good option if you want to spend some days in Rome and being near to the main train station. Also, the owners were super kind and so clear giving the instructions of check-in, check-out and conditions of the room. If I have to say any con, I would definetely say that maybe having to pay 4€/day for air conditioning is unfair, because in summer you have no other option than paying that extra amount.