We had a very nice time at Cielo di Napoli. The appartement was clean and nicely furnished. Everything we needed was there in terms of kitchen equipment, towels, WIFI, ...
The flat is based in a old house in a typical street of Napoli, but was very quiet at the same time. It takes only 10 minutes to the train station and about 15 minutes to the old city centre.
We would defenitely recommend it.