Casa Cirella was an excellent base for our stay in Naples. The location on one of the city's busiest shopping streets does mean that you'll hear plenty of street noise when the large doors to the balcony are open, but the street is used almost exclusively by pedestrians rather than vehicles. If you are looking for peace and quiet then be aware of this, but if, like us, you are looking to be in the centre of things and enjoy the bustle then Casa Cirella is the perfect location. And it's important to note that once the balcony doors are closed any noise virtually disappears - certainly we had no problem sleeping at night.
The apartment itself is exactly as represented in the photos - stylish, with high, vaulted ceilings, clean and well laid-out. The kitchen is excellently equipped, with necessities such a dishwasher and washing machine as well as more luxurious gadgets such as coffee machine and juice maker. There are plenty of cups, plates etc, and they too are stylish. The bed is comfortable, there is plenty of wardrobe space, and the shower has a strong water flow - something often lacking, we find. Another thing worth mentioning is the wifi - Casa Cirella's internet connection is genuinely high-speed, plenty fast enough for streaming Netflix, for example.
I wouldn't recommend Casa Cirella for the less able, because the door to the building is very small - a feature of many buildings in Naples - and it would be difficult to manage without being reasonable flexible when squeezing through.
Our interaction with the host, Stefano, was very good. He was there to greet us, explained how everything worked, and his English is better than he believes it is :-) Tracey managed to leave her Kindle behind (unseen under the pillow after reading at night), and Stefano quickly found it and offered to send it back to us.
Finally, transport - if coming from the airport, the Alibus takes you to within an easy 10 minute walk of Casa Cirella for 4 Euro, and takes maybe 30 minutes - a taxi would be no faster given the traffic in Naples.
Casa Cirella gets a solid recommendation from us.