Martin and his aunt were extremely helpful during our stay at 2 of his apartments in Palermo. They went out of their way to accommodate our check in and check out times plus store our luggage for us. Martin was always available by phone or email with any questions.
Martin had great tips for things to do in BA, made dinner reservations for us, and hooked us up with a travel agent friend in BA to book our trip to Punta del Este and also a tour guide friend in Mendoza who showed us the best time of our trip.
Both apartments are perfectly located in Palermo - everything you could want (restaurants, boutiques, bars) are within walking distance.
Both his apartments were good places to base ourselves when exploring BA and Martin and his aunt were great hosts who we hope to see again one day!