The entrance to the hotel is a bit dark and grubby (as is the whole of Naples in general), but it is in an old building so you can forgive that. We were greeted on arrival by a very friendly English speaking lady, who was absolutely lovely, and answered all our questions about the area, what to see, where to eat etc. She's not always there, and sometimes there's a woman who speaks no English, but she always has a friendly smile.
The room was very basic (as you'd expect for the price and location), but it was clean. The beds aren't particularly comfortable (mine was incredibly lumpy, I barely slept the first night, but we flipped over the mattress and I slept a bit better after that). There were a couple of power points, but for some reason the kettle would only plug into one of them, meaning we had to boil the kettle on the floor next to the bed, rather than on the table witht the rest of breakfast.
Breakfast consisted of bread with a pre-packaged slice of processed cheese (which wasn't nice), a packet of crispy toasted bread, a small croissant, jam and Nutella, and a jug of hot milk. It's not the breakfast of kings, but it does the job.
Overall, I'd say it's a pretty good hotel. If you want to be right in the middle of the action (if you've never been to Naples before, prepare for chaos) at a reasonable price, in a clean room with friendly staff, this is the hotel for you. If you want a 5* hotel, you'd better pay for one.