Diletta's place is very nice, comfortable, roomy and has everything you would need for a short (or longer) stay. She is quick to respond and always willing to help. The kitchen is fully stocked, the living room has views of the streets below and the beds are comfortable. The en-suite bed is a bit harder than the other bed. That's not a complaint, just pointing it out for those who may have a bad back. You can definitely hear the noise below with the windows open, but when you close them, you hear very little, if anything. We slept great and felt well rested every morning.
The Trevi fountain is located within 4 minutes from the apartment. The Spanish steps are about 10 minutes away. If you don't like to walk, there is a place where taxi's collect, just at the end of the block.
There are about 20 restaurants, pizza places, gelato stands, sandwich shops and gift stores on the block.
There is a small lift in the building to help you reach the higher floor on which Diletta lives. Overall, I would recommend staying at Diletta's place on your next visit to Rome.