The apartment was nice and very clean and it’s very close to the center. Still it was very quiet in the evenings. You may want to bring mosquito protection, not just for the evenings when visiting the islands, too.
The pretty church Miracoli with a nice and quiet square behind ist very close. We had some good and cheap drinks there in the evening (I think it’s called Venedig art cafe). The closest vaporetto stops are Rialto bridge or Ca’ d’Oro (nearly the same distance). We really liked dinner in the Osteria da Alberto which ist very close, too.