The place: very confortable and sparkling clean. Kitchen amenities very complete, you could cook a 3 star Michelin meal! Excellent location, quiet and nice area of the city. If you go when Venecia is experiencing tide issues, be sure to arrive during the low tide hours, as the bridges to get to the apartment get flooded and moving heavy luggage could be an issue.
The host: if a ULTRA HOST classification would exist, I would nominate Maristella. She is just outstanding and goes out of the way to make you feel good and assist on your needs.
I fully recommend this place. If you planning to be in Venecia for a long stay this would work out very well.