The apartment was great. It was sufficiently spacious for four of us, it was very neat and had everything we could possibly need. We arrived on a Sunday afternoon when there were no shops open but there were supplies of pasta etc. that we could use to make a meal.
We had thought that there was parking available at the apartment, but there wasn't. However a parking station was nearby for 10 euro a day, that Ernesto suggested we use and that worked well. Ernesto gave us clear directions to local shops and restaurants with map references. We had a very comfortable stay in Catania.