We were coming from Sorrento/Capri and needed to stay a night in Naples to catch our flight in the morning and this place was exactly what we needed. Close to the train station so it was easy to arrive and easy to hail a cab in the morning. The area around the train station seems sketchy, but I think it was actually quite safe. There were a lot of people out and about late at night and early in the morning. I might pick a different location if I were trying to explore the city as it's not exactly in the main tourist areas, but for our purposes it was great.
We were able to check-in with the given instructions and had no issue at all!