This is your place to be in Rome. Everything is walking distance from this place and literally the Trevi fountain is just across. The only thing would be that it could be a bit noisy at night as you are in front of a monument where there is a lot of people. However, if noise does not bother you, this is the place to be.
Simona was really helpful and fast in responding to any questions we had. She definitely made this an amazing and smooth experience.