Donatella's apartment is fantastic.
Bright, cozy, lovely, a nice bookshelf, nice furniture and very quiet. The equipment is ok. Very good welcome from Alessia.
The terrace (view on the Salute) is perfect for breakfast and to relax after the visits.
The only little default: the apartment is not really made for 4 adults, I think that 3 adults or two adults and a child are a maximum, the beds being quite small for the North-European sizes :)
The neighborhood (between the Salute and the Academia bridge) is probably one of the best places to stay in Venice, far from the hordes of tourists but close to everything. The atmosphere of Dosodouro is unique and pleasant, less "mass tourism".
A great place to have an aperitif: the Corner Pub, calle de la Chiesa
In short, an excellent stay.