PROS: The location is great, right next to the main cathedral in the historic center. Mauricio (the person in charge) was very fast replying by whatsapp every time we contacte and the check in was perfect. The apartment is quite spacious and has 2 double beds, a sofa and a nice baby bed.
CONS: The access to the apartment is complicated: going upstairs and then through a dark, moist narrow path to reach the building main door and then more stairs. We were unlucky to have a bunch of kids partying on the apartment above (also rented by Mauricio) during 3 days, it was extremely loud and crazy. The pans and pots were quite old. The shower very small and old. There was a problem with the pipes and there was water dropping from the kitchen ceiling that left a puddle in the floor (luckily for us it was right before we left).
Still, it was fair enough for the price and Catania is beautiful.