We stayed here in August and were wowed by how beautiful the hotel was. It truly is an oasis of luxury in a pretty dodgy area of Naples. We walked from the train station as it's less than ten minutes walk. I wouldn't advise it - we had never been to Naples before and were shocked at the rubbish piling up either side of the street, pretty much the entire way to the hotel. I'm not exaggerating - about a metre high. Also graffiti everywhere. Really grim, particularly as we'd just come from the glorious Amalfi coast. It looks like a third-world city.
Anyway, the location is the only major issue with this place as the hotel is stunning. Beautiful courtyard in the centre with a restaurant and jazz playing. Our room had two balcony doors, one in bedroom and one in bathroom, overlooking the courtyard which was really nice. The room was beautiful. Spotlessly clean and freshly painted with white walls and luxurious soft furnishings. So tastefully decorated. The bed was so comfortable - I didn't want to get out of it in the morning. I also loved the bathroom with it's big bath and dual showers, one a rain-shower. I loved that the balcony doors opened from the bathroom too. It was so clean and well-kept with bath robes and fluffy towels. I couldn't understand why the rooms were so cheap. It's one of the best four-star hotels I've stayed in, but I imagine the grim location is a factor here.
I also have to say that the staff were fantastic, particularly Paola (I hope I've gotten your name right). She was so helpful, smiley and friendly and her excellent English put our attempts at Italian to shame. She called us a fixed-rate cab to airport on day we were leaving. It's only €16 and I'd highly recommend you take advantage of this, as cab drivers on the street are notorious for ripping you off. The staff member will accompany you to the car with a signed slip so there's no way you should be charged anymore than €16, as they have an agreement with hotel.
She also recommended a fantastic pizzeria to us. It's called Lombardi and located just at the top of Via Carbonara on Via Foria. It's not the prettiest place but the staff were great (particularly Giulio) and had the pizza the best I've ever eaten. Check it out as eateries in this area are few and far between.
One small quibble - charging €7 for Wi-Fi in this day and age is a rip-off, particularly as it was a very poor and slow. It should be built into the room price. The rooms are such good value that if they charged an extra few euros and offered free WI-Fi, I think complaints would be few and far between.
Overall, a beautiful and well-maintained hotel, with friendly staff and nice restaurant food (though very pricey)