We extremely enjoyed staying in Rita's apartment few steps from San Marco square. Rita was very responsive and provided accurate directions on how to get to the apartment and meet with lovely Bilja who welcomed us.
The ride from Marco Polo Airport took about 80 minutes with the Alilaguna water bus (pretty long route). We arrived to San Zacaria station and had just a little bridge to cross (with a ramp - no stairs at all) on our way to the apartment. It took us 5-10 minutes to arrive to the apartment with our luggage - realy easy and very important since Venice has many bridges any many stairs to cross everywhere.
Bilja welcomed us and showed us around the apartment. The heating was already working which was very nice. Bilja gave us a map and marked inportant locations as restaurants and COOP Supermarket.
The apartment is on the first floor (short flight of stairs) and is very big and usefull for 4 adults - 2 Big bedrooms with comfortable beds and one big living/dining room. Views from the little balconies are very nice. The apartment is very clean and even nicer than in pictures and equipped with all necessities (Big towels, blankets, many mirros, kitchen equipment and so on). We had hot water all the time (heated by Gas).
The apartment location is great for those who want to be near San Marco square. We recommend walking in Venice as much as you can and not taking the water bus - since it is pretty slow and frustrating.