We stayed at Carl's apartment for about a month and a half. It was a perfect place to be our "home base" in Cusco. It's a quick walk to the San Blas market, where you can grab a sandwich and a juice for only a couple of dollars. It's also convenient to get to the main Plaza de Armas. The apartment was super clean and had all of the space we needed. The stairs up are steep, but you get used to them and they'll help you get in shape as you adjust to the altitude! Carl was very responsive and helpful, and Wilber was always right nearby to help us out if we had any questions. The only thing this apartment was lacking was a fridge, but Wilber gave us the option to put food in his sister's fridge. Overall, awesome apartment, incredible view, convenient location, helpful hosts - I would definitely recommend :) We hope to be back someday!