I've been staying with Bibiana and Thelma at least once a year since 2008, and there is simply no better place to stay in Oaxaca. It's a sweet B&B, without any of the breeches in privacy that tend to keep me clear of B&Bs -- you have your own room, with a private entrance, and your own bathroom. It's centrally located, so you can walk anywhere you'd want to go in Oaxaca City, and yet it's very quiet. Breakfast is always delicious. It's a wonderful sanctuary -- a real home-away-from-home!