We, a family of four, had a great stay in Dario's place. The apartment was nice and clean, and probably it's biggest selling point is the location: only a few meters from the San Marco square!
The apartment is furnished in a simple, but elegant manner and had all the amenities needed during a short stay in Venice. AC in the living room and in the bed room is a big plus.
Communication with Dario was a breeze: we always received quick replies and were meet by Dario at the time we had agreed.
In short: we had a great stay!