The location is the main reason to book this place; you are steps away from some of the best restaurants in all of Rome, and are set between many of the main attractions in Rome too. Easy to walk to many if not all of the tourist places, or to go 2 blocks and catch a taxi.
The space was fine but not extraordinary, a couple improvements could really make this unit shine, like better lighting in the common area, dishes or kitchen supplies, coffee pods for the coffee maker, etc. Also, the apartment is hosted by a tourism company, so you are dealing with a third party. This wasn't an issue, but it was a bit more work than I'm used to with AirBnB's, where I normally just "show up" and meet the host.
Overall it's a great place to stay if you're in Rome for a couple nights. Very secure building, and the roof deck is really cool. I don't think you will find a better value in this location!