We had a very nice stay at Sandro's apartment. It is very well appointed per all of the information and photos provided on airbnb. The apartment is nicely furnished and decorated with everything you need for a pleasant and convenient stay. We are a family of 4 and were very comfortable with the space. The terrace is lovely with a great view. We enjoyed it very much particularly in the late afternoons and evenings. The apartment is very close to St Mark's Square and other sights. It is also convenient to the Vaparetto water transportation for easy access from the train station. We had one mix up during our stay with the keys that were provided. The key for entry to the building did not work. A quick phone call to Sandro and we were let in by a neighbor and Sandro came over immediately to provide keys that worked. A good lesson for all Airbnb'ers - check all keys before you exit the first time and ask the host to demonstrate how they work.
I highly recommend Sandro's apartment for a stay in Venice! Convenient, very clean, comfortable and safe.