To reiterate what other reviewers have said:
* Amazing location - easy walking distance to both tourist attractions as well as great eats across the river in Trastevere
* Great space - the loft is super cute, modern, and clean
* Insanely quiet - I was very surprised given how lively the neighborhood is

The only complaint is the shower. The size was fine for a guy, but my wife walked me through the intricate details of how it was impossible to shave or keep her hair out of the water. The water heater size was also very small and we weren't able to shower back-to-back.