The apartment at St. Marks is a charming space that fit my family of 4 perfectly. It sits between the Rialto Bridge (3 minutes) and St. Mark's square (5 minutes) with a pharmacy and grocery store within a 5 minute walk. The AC and wifi worked well. Monica was kind to have us met us at the Rialto stop and led to the apartment as our internet maps were quirky in the maze that is Venice. Once there, however, her directions made perfect sense.
I enjoyed opening the windows in the morning to catch the light and sounds of the city while sipping coffee, especially the view from the kitchen window that intersected a small canal with occasional gondola traffic. Overall, I would recommend the apartment for anyone looking to stay in Venice.