I spent an amazing time in the Han's apartment, the place has an entire bathroom to use, there wasn't problem to get warm water never, an it is well located and very near from the subway Pigneto station, which it is the greatest advantage, because from that station you can arrive to all the different attractions from Rome.
The address is also over a street with a lot of movement in the night, there are a lots of places to eat around and to drink something.
Probably is a bit noisy to sleep in the night, so I recommend to you just to make sure that windows are closed.
Hans was very kind, he helped me to book a taxi to get to the airport because I had to arrive at dawn, He woke up at the same time as me to notify me of the arrival of the taxi and to check-out properly. I appreciated it a lot.
I would definitely recommend this place and I would come back.