We stayed in Rome in Viktor's place for 5 nights. Although we didn't meet Viktor in person, the communication was easy and his instructions to find the place and check in were super clear and helpful.
I really loved our room! It was clean and spacious and beautiful, a joy to stay in. We had just one issue with the place, and it was kind of a big one: the air conditioner didn't work properly. It would shut itself down every 10-15 minutes and wouldn't turn back on unless we used the control. Viktor was very apologetic and trying to help by ordering a guy to fix it, but there were delays and in the end the fixing didn't even do anything. As you can imagine, in the hot Italian summer a broken AC made our nights pretty unpleasant.
Still, as we kind of got used to it in the end, and since Viktor was trying his best to make it up, I would recommend this place to anyone who is looking for an aesthetic, private room with a great location near such beautiful and worth-a-visit places as Trastevere, river Tiber, and Campo de' Fiori. The more touristic attractions are also just a healthy walk away - we didn't have to use the buses or metro at all during our stay! Viktor also had a few great recommendations for restaurants and bars in the neighbourhood.