This apartment is terrific. It is beautifully decorated, spacious, wonderfully located and adequately equipped. The size was a nice surprise, especially after spending a few days in another city in a postage-sized apartment. We found it difficult to leave every morning, choosing to make a light breakfast at home instead of going out. There is a nice supermarket a block away that has everything you would need. And for high quality groceries, the Campo de' Fiori is just a few minutes away. Everything worked (not always a given), and it was great to have a dishwasher and washing machine on site. The bathroom is large for Roman standards, and that is always a plus.
Roberta was a most responsive and pleasant host, from our initial booking throughout our stay. She was kind to order limousine service both to and from the airport, which was reasonably priced. The orientation was a bit rushed, so it was hard to retain all of the information, but it didn't cause any problems. The music from the restaurant next door was slightly annoying, but never during sleep hours. But these are really very minor nitpicks.
Overall, the experience could not have been better. It definitely made a significant difference in the quality of our trip. I have no hesitation recommending it, especially since I found the value to be quite good.