Great place to stay!
Just 10 minutes walk away from Museo metro, which allows you to reach any part of Naples and more. Apartment is in quite place, almost cul-de-sac. Therefore, at night time it is quite and you can get great sleep.
Another thing in regards to location it is based right next to old town of Naples. Plenty of restaurants, coffee shops. However, a lot of tourists as well.
Notice to visitors, please do not walk towards Piazza Garibaldi at night time, the area can be a bit sketchy.
In regards to the whole flat. Everything was good. I did not liked the smell of mold in bathroom, but it's something that you can expect when there are no ventilation in bathroom. Those who has some breathing conditions might wish to avoid this place until ventilation is installed.
Receptionist lady, does not speak in English. But in general, she's there to handle you the keys.
In overall, I would recommend this place for single travellers. And if I'm coming back to Naples, I would definitely consider staying at this place again.