Three of us stayed in Lucio's apartment recently and it was excellent.
It was easy to communicate with Lucio and he was there on arrival and departure - he made the whole process very easy.
The flat itself was really spacious, tidy and very comfortable to spend time in. It was only around 15 minutes walk from the Duomo and there were good transport links nearby.
There was also a small supermarket nearby and, should you be looking for such a thing (and I was), a gluten free bakery about 5 minutes away on foot.