Excellent apartment in great part of Venice. Mattia was super responsive and helpful. Quiet, off secluded alley way, but close to Vaporetto stops, Accademia, Guggenheim, Salute, etc. Very easy walk to San Marco over Accademia bridge.
Kitchen totally adequate for small meals if necessary. Two bathrooms, modern furnishings, washer, excellent wi-fi, etc.
Loft has two small beds, but that worked perfectly for us as our two kids (12 and 14) fit there well. Would definitely be a challenge for two full sized adults though.
Dorsoduro a great place to stay in Venice, not as hectic as others, waterfront on Zattere is amazing, also close to fun Campo Santa Margherita area.
Not a criticism, just be aware that it's a little bit challenging to get from airport if you are not familiar or have lots of luggage. Of course that is true of many parts of Venice, but it just takes a little planning and/or patience. We took airport water shuttle to Zattere which was fine, but it's an almost 2 hour ride. A direct water taxi would have been easier and much faster but almost 3 times as expensive. Bus to Vaporetto the cheapest option but more hassle than we preferred after long trans-Atlantic flight. Just FYI.
Bottom line, we would definitely stay here again and can absolutely recommend to families with kids needing to sleep four.