We spent 4 nights in this apartment.
The flat is perfectly situated within Rome to access anything we wanted to visit by foot, which was lovely for our stay.
It is well decorated and furnished in the main room with the exception of the bathroom which is really not up to the standard of the rest of the flat and would need a makeover.
The bed would also need a mattress replacement for which I'm sure Federico will fix since he seems to own or take care of 46 different places in Rome ;)
As mentioned by many guests, please consider the boulevard along the Tiber river is extremely busy and noisy and the flat doesn't have soundproofing windows, which can be very annoying to sleep comfortably. Also know the fridge is really close to the bed, so you might hear it when you don't hear the street.
We enjoyed our stay, the location is perfect, but the flat would need to be finished to meet the rates displayed.