Cristian was a fantastically helpful host; he was in contact from the moment we booked, answered queries quickly and was kind enough to meet us from the vaparetto to show us the way to the apartment. He recommended restaurants nearby (avoiding the real tourist traps) and kindly left us some chilled prosecco and other essentials.
The apartment was spotlessly clean, very well equipped and furnished (loved the Murano glass tiles!) and in a great location - only 10 minutes walk to St Marks Square and the Doges Palace and 5 mins walk from Arsenale vaparetto stop. There is a reasonably sized supermarket within 10 mins walk and plenty of bars, restaurants and pasticerria close by. The apartment is in a quiet residential area, with a lovely view down the canal from the main living room.
Venice itself was extraordinarily beautiful - it was hot in July but the air conditioning in the apartment was great to cool us down after a long day sight-seeing. Cristian was very kind and arranged for us to visit the glass factory where he works on Murano, where we saw a glass blowing demonstration. Other highlights were views from campanile on San Giorgio, walking tour and rowing lesson in Cannaregio and Secret Itineraries tour of Doges Palace.
We cannot recommend this apartment highly enough - I am sure we will be back!