I had a beautiful time in Venice. Sandra's flat is exactly as it is described on the profile. It is easy to get to from the airport, and it is located close to the Rialto bridge (5-7 minute walk), where you can get on the vaporetto (water bus) to anywhere you need to be. The location was perfect -- very easy to reach the historic sites but still in a residential area that is very quiet.
Communication with Sandra was always quick and helpful -- both before and I after I arrived in Venice. Check-in went smoothly, even though I arrived 2 hours before the earliest check-in time.
On check-in day, Sandra gave me a map and put a cross on all the important places -- sights, restaurants, hidden locations. This map turned out to be so extremely helpful, and it allowed me to find all the places I needed to be.
Many thanks again Sandra, for a wonderful trip!