First time to Venice and couldn't be happier with the flat. The view was absolutely fantastic for lazy mornings and evenings where we decided to just stay in.
The locations is also wonderful. Overall Venice is small and totally walkable but the flat is off in a more quiet and secluded part (if that's what you're looking for) but less than 10 min walk to the Grand Canal, San Marco square and for logistical reasons, the important Fte Nove water boat stop that has direct boats that will takes you to the outlying islands (Burano, Murano, Lido) and Marco Polo airport. Most other stops you have to take many transfers.