This is a great, clean flat for a decent price (considering how insanely expensive accommodation in Rome is).
The studio has one room with couches that fold out into two queen-size beds, a nice bathroom and a kitchenette and. The best part is probably the fantastic view from the terrace/balcony, you can see all the way to the memorial and even the Vatican if you go up to the roof (a small staircase leads there).
The owner and everyone else were very helpful and friendly.