We stayed for a couple of nights at Giò & Giò Bed and Breakfast. The place is conveniently situated, close to Piazza San Marcos, the Vaporetto stop and not far from Rialto bridge.
We stayed at the room number 1. It was cozy, clean and very nice. We loved the fresh croissants at the door of our room every morning, and the rest of the breakfast was also really good.
We didn't get to meet Monica or Gianni in person, but we did our check-in with a girl who provided us with the keys and all the information we needed.
I highly recommend this place if you want to feel part of Venice, not just a visitor, during your stay.