Roberto's place is really super nice, although very tiny, it still has everything needed for a short and very pleasant stay. The room (in fact it is a room, having a small kitchen box with everything in it! and a bathroom, not too small, but just perfect in terms of size and with a window :) ) was super clean, the bed and the pillows were extremely comfortable, very bright and nicely decorated.
The huge terrace is situated on the top floor of the house and in order to reach it, we had to leave our room, lock it, change shoes and etc. which was a bit uncomfortable. (There's no direct link between the room and the terrace) Otherwise this is maybe the best terrace, which you'll see in Rome. It is maybe 3 times bigger than the room, has everything that you would wish for, so so nicely decorated and with so many flowers and plants! Complimenti for the terrace, it's very beautiful and so romantic at night...
The house is situated in the heart of Pigneto, 2 min walking from the daily market and the pedestrian area, which by night transforms into a very lively place full of young and artistic people. But still, the house is situated far enough in order to have a nice and undisrupted night sleep.
Although we didn't manage to meet Alberto in person, I find him a great host and our communication was very smooth and every time super quick. He organized for us a super early check-in, which was more than great! He had left for us as a compliment a bottle of wine and water, which was super sweet and great way to say welcome!
Our stay was very pleasant and we recommend staying with Alberto, in case you wish to be in Pigneto.

Keep in mind, that if you choose Pigneto as your base camp, you'll have to take 2 metro lines in order to reach a more central part of the city, sometimes this is a little more time consuming than expected.