This really is a lovely place for 2 couples. 2 BR/2BA apartments are exceptionally rare in Testaccio, so finding this one... WITH A TERRACE! ... was great for us. The apartment has been recently renovated so everything is in great working order. This is definitely a 5-star AirBnB, in every aspect.
We were there for 3 weeks and enjoyed settling into the neighborhood (Testaccio is a great base for seeing Rome) and having a lot of space for the occasional rainy day. We didn't get to use the terrace much---it was January---but when we did, it was lovely to have even more space, quite private, to stretch out.
The kitchen is smallish, so if you were thinking of making pasta from scratch or cooking huge meals, you might find this challenging. For our group of only 3 people, it worked out just fine. The dishwasher is a nice touch as well.
Each bedroom is plenty large with adequate storage and a nice-sized bathroom with sink, shower, toilet, and bidet.
The house was also plenty warm, even on cold winter days, and kept the heat inside very well. The lighting -- something you rarely notice -- was so beautifully done that it was a pleasure to sit and eat, read, or chat. All lights are LED and most are inset into the ceiling, giving everything a nice clean look.
We saw Nadia multiple times during our visit; she was always very accessible and nice, and was happy to help us with any questions we had.
My only complaint is that we want to come back in May and the place was already booked!!!