Michael Loh
Google
Centrally located and decent value by Oaxaca's inflated standards. Short walk to the Zocalo with many good restaurants in the area.
Standard of cleanliness is shockingly poor, however. The bedsheets were not clean - yellowing, bloodied, dirt marks, and with bugs. They will change your sheets frequently, but this will only replace dirty sheets with other dirty sheets. When told about this, the staff said it's "clean but stained". This is really not an acceptable level of cleanliness, and has been issue for at least a year, judging by prior reviews.
Rooms have zero sound insulation, you will hear EVERYTHING, as will anyone outside your room.