From the initial Comunication to the welcome arrival and the apartment and its location, the entire experience we had was a 5 stars!
We arrived early, around 10:00 and were managed to directly be checked in the apt, with a welcoming short tour of the place and some good recommendation about the area. The location of the apt can not be better in term of centrality and proximity to major sites within central Venice (2 min. Walk fro San Marco square...)
All in all we couldn't ask for more.