We had a lovely stay in Casa Ruga.
We have received very good directions on how to arrive and found the place very clean and aesthetic.
We also received good tips on the surrounding facilities - supermarkets and restaurants.
The location is a quiet Venetian street between the two main biennale locations, close to Via Garibaldi, which contains a variety of nice local restaurants/
For us, it was an ideal location and we enjoyed our stay, out of the fuss of San Marco, quiet, good food and facilities.
The flat is on the second floor (you have to climb two floors). It was fine with us. When you carry suitcases, its about 15 min walk from the airport boat line, and includes a few stairs on the way.
The flat was very well equipped, including wi-fi, printer, dishwasher, washing machine, drier and more.