Luigi's apartment is in the city and within walking distance of many attractions. Being in the city, one should expect some noise at night (until after 1:00 a.m.) and when the garbage collectors come through in the morning (around 7:30 a.m.). The pullout sofa-bed was somewhat noisy when shifting positions (I stayed on the other bed, so I cannot speak to comfort). There are two balconies, one with a table and chairs, which provided a lovely place to have breakfast.
Overall, STURZO house was a reasonable accommodation at a good price. If business brings me to Catania again, I would consider staying at STURZO house again.