Nicola and Chiara have a wonderful spot near the Duomo with everything a couple could want, in terms of space, amenities and location. A quick word on noise, however. I don't know if it was because of the time of the year, or if it's just to be expected with such a central location, but the street is very noisy at night, and it doesn't stop at any time. Earplugs are recommended if you're a light sleeper.