Andrea's place is amazing! First, Andrea himself is an incredible host. He replied almost instantly to any of our questions we had for him before and during our stay. He also picked us up from the airport, gave us a ton of tips for local food and things to do, and even showed us around outside his place to orient ourselves. His flat is very clean, has everything you need, and the location couldn't be more perfect. You're within walking distance of almost everything, and for anything a bit further you just have to walk 2 minutes to the NW corner of Piazza Duomo where there was always a few taxis lined up.
Cannot reccomended this place enough, we'll definitely be trying to stay here again in our next trip to Catania.