Bertha is a great hostess. The neighborhood's city water supply went out while we were there, and Bertha and her housekeeper Mary were relentless about getting the "pipa" truck to come fill the building's tanks. Bertha and Mary were both extremely friendly, accommodating, and quick to respond to queries at any time of day. The apartment was clean and comfortable. If you are bringing more than one device that has a three-pronged cord, be sure to bring adapters so that you can plug them into two-prong sockets. (This is probably good advice no matter where you're staying in Mexico.)