the good and the bad:
Good: spacious apartment/good location--Carnareggio is a working class neighborhood so it is less touristy and more local with many excellent hole-in-the-wall restaurants full of locals rather than tourists/excellent wifi/close to a vaporetto stop/walking distance to the train station/very quiet/Mardo is very personable and informative and communication was very good.
Bad: Impossible to find without the host guiding you there (GPS gets it wrong) so have the host meet you at the Guglie vaporetto stop rather than at the apartment/shower head does not stay in place so must be handheld/you are right on a canal so that means mosquitos which bit us multiple times making it hard to sleep/air ventilation in the bathroom is weak