Brando is a very good host, he is also very helpful, and his place is really beautiful! We spent two wonderful and relaxing weeks there. You wouldn't believe it is in the city, since it is so calm and the garden so peaceful.
The city centre is in walking distance (about 25 minutes by foot, the way back can be a bit longer, though, since the house is located on a hill), you can also take the bus there, but busses were sometimes very late or just didn't come. I'd recommend to also rent a car to be able to explore the absolutely beautiful area around Catania.
All in all, our stay was really great, thanks to this wonderful accommodation!