Casa Suzana is the perfect setting for your idyllic vacation
Set in a quiet neighborhood near the ocean
Casa Suzana is located in what is often called the "Corpus Christi" neighborhood of San Miguel de Cozumel
The official name of the neighborhood is "Andrés Quintana Roo" but nearly everyone refers to it by the name of the parish for the Corpus Christi church. It used to be, and sometimes still is, called "Gonzalo Guerrero" so there are three names you may see used for the neighborhood.
Google Maps incorrectly calls the neighborhood Gonzalo Guerrero, and Garmin incorrectly places Casa Suzana in nearby Colonos Cuzamil.
On request, I can supply .gpx or .kml files of Cozumel POI's to renters for use with GPS or mapping systems.
I recommend not relying on Apple Maps in Cozumel. It can be comically inaccurate, with mislabeled streets and mis-placed POI's. Many streets in the vicinity of Casa Suzana are mis-numbered in Apple Maps.
Google and Garmin maps of the area are fairly decent.