The location is incredible - right in the middle of real Venice; away from tourism but only a short walk into the tourist centre. A supermarket is located left over the bridge, about 50m from the door.
Giulio is a fantastic host - so incredibly helpful and available when needed but not at all prying or invasive.
I would recommend that you stay with Giulio not just for his well air conditioned, luxury attic apartment with lovely bath and shower, but also just to meet him and get the tips from him that have the opportunity to make Venice special.
We will no doubt stay again.