We stayed in Irene's basement level studio flat over a long weekend and had a wonderful time seeing the city. The flat is located in a non-touristy area across the river so local shops and restaurants are mostly excellent. There are some excellent pastry shops just down the road! Also there are easy connections to the city center with a direct tram to Piazza Venezia. The tram also passes by the hip Trastevere area which is great for reasonably priced food and drinks.
Irene is living out of the country so her friend welcomed us into the flat and showed us around. The pictures actually do not do the flat justice, it looks much better in real life!
As stated in the flat description there are two single beds in the flat which can be pushed together easily if that is required.
The only downside is that as a studio flat, there is not much buffering between the flat and outside hallway. If you are keen to have a lie-in it maybe difficult as many working people are heading to work in the morning.