Annamaria's place is great for spending time in Venise for 3 main reasons :
First, it has everything you need to rest, cook, shower, launder etc. (as long as the high tides doesn't mess the electricity up ;) in a warm and cosy place. As a couple, we really enjoyed it. Cellphone reception is poor in the flat, but it has its own wifi which is very responsive.
Second, it's located in a perfect neighborhood in our opinion. Closeby from the very center (20 min walking to St Mark) and connected to every, as it's 3 min from Giardini vaporetto stop. Also, it's very calm compared to the crowded city center, but it stills has a lively mood (several bars, frequented by venetians, which is not so usual in this city we found out), convenient grocery stores and bakeries very nearby.
And last, Annamaria is very accomodating. She installed a safe on the window to ensure our late arrival, and she quickly responded to all our messages.