We spend 3.5 weeks in Jony's apartment and it was great. It was close to our Spanish school and next to Palermo, so location was perfect. The apartment is one of the more modern ones in the neighborhood and the kitchen is well stocked (eg it has an oven!) You can walk here at night without any problems and there are some great bars around in Palermo. Cleanliness could be a little better, but for the rest everything was fine. We met Jony for coffee and he had some good tips. Would recommend. Cheers