A word of advice: make all of your train reservations arrive/depart from Venezia SL (Saint Lucia). It is so much easier, and cleaner!
The apartment was a 20-minutes bus ride from Venice. This worked well as during the night it was very quiet-- no partying. Our only noise was a family in the room next door with an infant that cried quite often. The apartment was cleaned daily with fresh towels and a continental breakfast. An award-winning pizza place just down the street.