I'd definitely come back. The room is very comfortable and I felt at home. It very clean and she hosted me on last minute without any problems. Her son gave me valuable tips! There was a kettle available and the restroom was great, with chromatheraphy and bathtub. Great value!
It is around 25 minutes walking from Cavour or Garibaldi, which is close in Napoli's terms.
There are buses nearby, but you have to wait around 20-30 min. No public transportation after around 10:30 pm, so be prepared to walk or pay a taxi (around €10).