I have mixed feeling about our stay. Although the apartment is indeed beautiful and well located it is very small and spread across 4 floors with very narrow stair case. It is also full of the owner's possessions such as books and children's toys which make the small space feel even smaller.
It is certainly not suitable for four people. Sleeping in the attic was impossible due to the heat and the small air condition was not nearly enough for the July heat in Venice. The bathroom is not suitable for an average sized person - we all had to shower while trying to to keep our head from hitting against the ceiling. Also wifi did not work. Kitchen looked amazing and well equipted but we did not get a chance to use it - so no complaint there. I would only recommend this property for a short, thin couple, and absolutely not during the summer due to the heat.