I really enjoyed my stay. The location can't be beat, with the fish market and cathedral literally one minute away. The one room apartment has a majestic ceiling, giving a feeling of past grandeur.
As is the case in old buildings, there can be some technical problems. One night the elevator malfunctioned and was loud, but the problem was taken care promptly and professionally, and I was given a box of wonderful Sicilian sweets the next day for the inconvenience.
I was alone, and the apartment would be ideal for a couple. It is one room, so 4 could be a bit tight for more than 1 or 2 nights.
Excellent communication and good tips for the city. Definitely recommended!