Good things first: the flat is very well located near st. Maria Maggiore and termini. Also when we finally met Liviana she was nice and helpful. The rooms were clean, spacious and are quite good price. Also we got breakfast vouchers which was nice.
However we were not entirely satisfied. The communication beforehand was okay but not very fast, When I called I didn't get to speak to Liviana herself but to a nearby hostel to which she had outsources some of the services. When we arrived in Rome we picked up the keys in this hostel. There they told
us that we (two couples) would have to Share one room for the First night even though we had explicitly requested two rooms. We got a 30€ discount for that night but didn't really get the feeling anyone was sorry for our inconvenience. This shared room was on a different floor in the same house in some kind of hostel and we had one bed and one quite uncomfortable sleeping couch. The room was tiny and also quite loud. After one pretty sleepless night in that room we moved up to Livianas flat where we had two rooms. The flat is ok but be aware when booking that you are sharing it with her family - you don't have the apartment to yourself. There are two guest rooms and a bathroom for your use. The kitchen is shared with the family and is located between the guest rooms. I am not Sure if I oversaw that part when booking the rooms. Might be my mistake. The two nights at Liviana's where good in the end. A plus was also that we could leave our luggage there until the afternoon.