I honestly couldn't think of a better location to stay if you're going to visit Rome. The Coliseum is just a few blocks away, and Ari's apartment is just spectacular. It's comfortable with pretty much all the amenities you might need, and is also decorated really well. It has an atmosphere that makes you feel like you're in Rome. If I were to ever go back to Rome, I would want to stay at Ari's place again without a doubt.
She was really communicative, and at the end of the trip I temporarily lost my phone, and Ari went above and beyond to help me try and find it (I eventually did find it :) ). Her location is reasonably priced as well for what you get. I definitely recommend it to anyone visiting Rome!