Alberto is a great host, very friendly and speaks really good English, which is rare in the region. he's very helpful with everything from giving you a map and tips on where to visit, to anything that you might need while staying there. the bnb is in a great location, close to everything. the room is clean and pretty comfortable.
the only problem i had was the mosquitos, there are many of them in Palermo, and repellent did not work for me.
overall, i had a good time staying with Alberto.