We really loved this apartment. We have stayed in Venice apartments many times over the years, and this had to be one of the better experiences.
However, the owners could do with an Ikea run. The kitchen isn't really a working kitchen and could really be. If they just added: a good, sharp cooking knife (there are only steak knives), a cheese grater (yep, the only Italian kitchen without a cheese grater), and a few wine glasses (if you haul a good Barbaresco back from Vin & Vini, it deserves something better than a juice glass) this place would be a home run.