Toni offers a what-you-see-is-what-you-get type of accommodations at a very accessible price. You will get the basics-- a homey place to sleep, a common room to gather or work in, a bathroom for your hygiene needs, and internet. It's where he lives, and place is clean enough for me.
The location is very near Via Toledo, and so many of the places you see in local guides are at walking distance. The alley towards his apartment is not as well-lit as it should be, so it's better to arrive before dark.
It is Toni himself who adds the most value to the this space: He was hospitable; he did not hesitate to show me what was available in the house, and in the surrounding areas; he made my first time in Napoli feel safe enough.