I'll try to keep this short, although I could honestly go on and on about this apartment and its wonderful host!

In a word, the place is palatial. And it is everything it is advertised to be and exceeded our expectations to say the least.

Margherita and her family were highly attentive and informative from the time of booking and through our stay. She and her sister kept in contact and were always responsive when I had questions. I was even given advanced warning of an impromptu strike of the vaporettos so I could mentally prepare upon arrival - these are genuinely good people. When we asked about power adapters (we forgot ours) Lucia insisted she would get some for us to use during our stay - and she did, leaving them for us soon after checking in! Margherita's son even insisted on carrying our bags right from the canal up to the apt - a fine young gentleman. I did not expect such service on my first Airbnb stay.

A couple of quick notes on the space itself:
Location is right in the sweet spot, mere steps to many vaporetto and St Mark's, yet it is situated back from the building entrance so it was entirely quiet! Walking distance to many attractions and some great restaurants.
Every bedroom has its own full bathroom, a true luxury. The kitchen is spotless and fully equipped and is right off the dining/living rooms, definitely suited to cooking/entertaining although we did not do much this trip. Bring Bialetti coffee pods or use the traditional pots on the stove as we did for an authentic Italian coffee.
Every room has its own programmable air conditioning unit (in the US we call these "splits") which was great, as it was much hotter than we anticipated - we all were extremely comfortable and grateful to return to such comforts after long days of touring. The ladies also appreciated the hair dryers in each bathroom.

My highest recommendation goes to this apartment and its gracious hostess.

Brava, Margherita - Grazie mille!