Great location that is walking distance to most tourist attractions with lots of restaurants nearby and buses if you want to go further out of town. The space is small, but the way they designed the house makes it very practical despite the small size. Full kitchen and bathroom is good considering the size. As others have mentioned it is a futon bed, but as long as you don't mind that, it was perfectly fine to sleep on even with 2 people. Wifi doesn't really work inside the house during our stay at least, but if you open the door and hold the pocket wifi outside the door then it works fine. We were out most of the time anyway so this was not an issue.
Milena was very accommodating and friendly. Great stay in Rome would definitely recommend.