It is a great appartment, very well located in the heart of Naples (just a few minutes to the main restaurant and shopping area, 15 minutes walk from the main train station). It wouldve been a no-brainer 5 star if not for the communication with the host, who seemed to respond only when it suits him: no responses on our text messages, provided phone numbers were not existing/offline. However, we could reach him for the check-in and had no instructions for the check-out, luckily the door was getting locked automatically.
All-in-all, if you want a good price-value stay in Naples, I would still recommend this choice.