We had a wonderful stay at Ca'Donzela! There's enough room for 8, it's very clean and Arelis was very welcoming, uncomplicated and helpful. And the location is absolutly great! It's at the market and fishmarket - in the morning you can step out of the building right into the Venecian life. You can enjoy all the diffrent fresh vegetables and fruit and the hustle and bustle of the fishmarket and a lovely view across the Grand Canal. It's a wonderful place from where to explore Venice - so close to the Rialto Bridge - you can easyly reach every part of Venice from there on foot.
I can only recommend Ca'Donzela!