My girlfriend and I had a lovely time venice, the city is pretty crowded with tourists but just gorgeous.
The good thing is the flat is in an area where many native venetians live, that means it is a bit away from "San Marco" and the rest of the tourist hotspots.
We actually liked it more in the part of the city where the apartment is located. Just felt more "real".
Lucia will recommend (we at least think so) an amazing trattoria/pizzeria just a 2 minute Walk from the flat.
The flat itself is nice and cozy, even more than the pictures would suggest.
The highlight of the flat is of course the little balcony, where can see a gorgeous sunrise. And also you have access to a rooftop terrace.