Mario and his aunt were great hosts, greeting us literally with open arms. It was like visiting an old friend (which, of course, they now are). The place was wonderful, the neighborhood quiet, yet convenient, the breakfast inviting, and the conversation even better -- given that we were both Napoleon and opera fans. And if you like art, you'll love it -- like living in a gallery (though not the least bit stuffy or formal). We recommend highly. And the #12 bus stops directly across the street from the apartment. We also found, at Mario's suggestion, the best (and very intimate) restaurant in Florence that's just around the block: Osteria delle Tre Panche (The Tavern of Three Benches). Make reservations; it's small, but wonderful. We ate there twice. Next time we visit (likely in the fall), my wife and I will be staying with Mario, of course.