Anna's apartment is in a great location, halfway between the waterbus stops at Rialto and/or San Marco, and in the middle of shops and restaurants. It took us 3 minutes to get to St. Marks Square on foot and 5 minutes to Rialto.
The two bedrooms are spacious and the ensuite bathrooms make it easy for two couples to share the apartment. Everything worked well, and you have everything you need - a washer/dryer, iron, fridge, hot plate, kettle, coffeemaker, air conditioning throughout etc.
The only issue is the fact that the apartment is on the second floor if the building, and there is no elevator, so for elderly people with heavy bags, it might a bit difficult to get upstairs without assistance. It didn't bother us though, so I'm still giving Anna a 5