This was my first stay in a shared space (i.e., without a standalone apartment), and it was a relatively good one.

Danila is a great host, very friendly, and helpful with contact/directions about the area near Trastavere. The location itself is very well served by public transport, both from the airport (the cheaper non-express train stops at Trastevere, a 10 minute walk from the apartment), and tram, which takes you to near the centre of town from outside the apartment in 15 minutes. Access to the metro is also easy via Roma Trastevere/Roma Ost. train station.

One negative experience I had was that the other guests locked me out of the apartment one night! There's a deadlock that only seems to be openable from the inside, so make sure any other guests know. In any case, Rome in the morning is fun.

Overall, the place is well kept, and there's even breakfast food on offer! I'd definitely consider staying again.