We (young couple, no kids) stayed for 3 nights in Matilde & Maria's apartment. It's a clean & cosy place; we felt there like home.
Both Maria & Matilde did the extra-mile to make our stay comfortable - they allowed an early check-in, they sent us recommendations for places nearby and also they transferred us (for a small extra-fee) to the airport. They wanted to make sure we have everything we needed and we enjoy our stay.
We found near the apartment a great pastry shop; there's also a convenience store nearby. Main square is a few minutes away , at walking distance.
We used a lot the place's terrace, both for working & relaxing during evenings.
The neighborhood we perceived to be pretty dirty & chaotic on the street, but we had no incidents; it's only that you will be in a traditional / local street, not in a fancy area with villas & 5-star hotels.
Finding this apartment and such kind hosts was great, we enjoyed our stay in Catania.