This apartment belongs to Nikos's family, who also run the nearby hotel, and appears to be in use solely for rental at the moment. We never met Nikos: his very nice brother at the hotel reception checked us in.
Apartment was spotlessly clean, if somewhat soulless. Being Venice, where streets are narrow and buildings tall, it was very gloomily dark. But this apartment is all about location - it literally is a minute or two from the San Zaccaria vaporetta stop ( you can take the public water taxi right there from the airport, which is of course the perfect way to arrive in Venice) - and is a couple of minutes walk in the other direction to San Marco. Lots of lovely bars and restaurants nearby, including one literally under the apartment. The location was perfect.