I already stayed two times (November 2010/2011) with friends at Residenza Laguna and we were surprised by the warm and communicative atmosphere there.
The rooms and the bathrooms are cleaned every day, they are small as you expect them in a city like venice and furnished with loving homegrown taste.
If there is any problem with your travel, room, route, food - just anything, the owners were always kind and willing to give you information or make your stay comfortable as possible.
The breakfast is a typical italian breakfast - manageable nevertheless tasty with a delicious coffee. If you need something special, you live in an area with various bars, markets and osterias, so you can easily help yourself to some other food, snacks and drinks.
The location is so close to the city center itself, that you can easily reach most of the interesting parts and sceneries in venice by feet. Different vaporetti are reachable within 3-5min walking time as well.
