We liked that the flat was quiet and the area not that touristic as other parts of the City.
As we Like strolling around we did most of our Tours by foot and have been astonished about how varied different parts of Venice are.
We also liked that the flat ist near the shore and you have a nice View on Venice bay ( Not from the flat, but Just a Minute Walk to the Promenade).
So we enjoyed it very much.
If you Go by train, make Sure to get a vaporetto in time, since Line 1, which goes via Canal Grande, needs almost 1 hour from Biennale to Santa Lucia.