I had a great, albeit short, stay at Danilo's place. I arrived late at night and Danilo was flexible and understanding, even after my train was delayed and I had no Wi-Fi to communicate!
It is a 20-25 minute walk from Roma Termini, which I was comfortable with. There is a lot of happening nightlife nearby if that's your thing. It is a younger crowd.
The bedroom was spacious with a bed that should be fine for two people (I was by myself).
Danilo was a very generous and welcoming host. He offered recommendations, shared his fridge and food, and was accommodating with my questions and requests --
like how to flush the toilet... :)
Overall, I would definitely recommend staying. Just be aware that the walk from the train station is 20-25 mins in case you have a lot of luggage or are opposed to Ubering.
Cheers!