Our group of 9 (5 adults, 3 children and 1 infant) thoroughly enjoyed our stay in Danila's place.
The apartment is spacious so even with a full house it did not feel cramped. It was useful having 2 bathrooms (although everyone used the same shower as the one in the en-suite did not work well).
As mentioned by a previous reviewer bed linen and towels are available at an extra cost. I would have preferred this to have been obvious when booking as when we arrived we had to pay 125 Euro for this along with a late arrival charge and air conditioning for our 3 night stay. Danila got in contact to offer details of these charges 9 days after we made our booking so the other apartment which we had considered had been booked up by then.
The apartment was in a perfect location for us. Very close to Trastevere station but away from the hustle and bustle of the main area of Trastevere itself. It was easy to find despite it being very late at night. We were even able to find take away pizza and drinks around midnight on Sunday!
The nearby tram stop was very handy. We used this to get to the Colosseum and Trevi Fountain as well as to get home from evenings in Trastevere. We also walked to Vatican City which took about 1 hour but had wonderful views.
We had a great time in Rome and would consider staying in Danila's apartment again.