Our family of 4 ( 2 adults & 2 teens) thoroughly enjoyed our stay at Casa Mastro/Casa Zenia B). The air conditioning and especially the pool, were truly welcomed after spending time in Positano or taking the ferry to different destinations and then walking up the many steps to the apartment. While we did not mind the steps & utilized them each of our several days, there are 1000 steps down to the beach/town center & then 1000 up to Casa Mastro. (there are buses that will transfer you, but never seemed to be available when we were heading out :). As stated, the AC was great, the water pressure and water temperature, as well as the size of the showers, were greater than experience in other areas of Italy. The beds were very comfortable, with appropriate comforters and pillows provided. From someone with thick shoulder length hair, the hairdryers they provided were welcome, over the travel one "for the US to Italy one" I had purchased. When we initially booked this property, the listing stated that there were no TV's, but there actually is a TV in the kitchen/family area. Although most channels were in Italian, we did find one channel in English.
While being lower in Positano may provide you with a shorter walk to the beach and such, the location of Casa Mastro provides the most outstanding, memorable & breathtaking views! The very large balcony allowed us wonderful evenings dining out under the full moon with food from the local Ristorante Da Costantino's. while our teens relaxed in the pool. Casto Mastro includes a fantastic opportunity to relax, get a great workout, enjoy life changing memorable views, with many other destinations within a short reach (Almafi, Capri, Ravello, Sorrento, Pompeii etc) while enjoying the peace and quiet and incredible views that being farther up on the mountain can offer.