Rancho Epenche is the best getaway spot: surrounded by mountains, away from the city. It's a +100 year old remodelled hacienda. You can also rent only one or several rooms starting at $50 USD.
It is located at a small "rachería" (smaller than a town), it has two very small grocery stores and with the locals you can buy homemade cheese, mushrooms and blue corn tortillas.
It is located 15 minutes away from Mazamitla by car.