Naples is an interesting place. It is unexpectedly chaotic but also very vibrant in terms of just food. I would suggest just doing one day in Naples and spending time doing other things like Pompei or Mount Vesuvius. The neighborhoods feel very crowded and dangerous. Other port towns such as Sorrento and Amalfi are much prettier.
In terms of our stay it was ok. Getting to the place is easy. The location is very central, as it's like 15 minutes from the train station and also one of the best pizza places we've been to (da Michele). Place looks better in the pictures. It is very humid inside the house. Marianna was very kind to provide us with just linens since amenities don't include basics such as linens and towels. Wifi is ok. Neighbors are loud. Marianna is amazing at communicating with you from the moment you book to giving you the best advice to get you to the airport on time.