Antonio really is a SUPER host: the extra attention he devotes to his guests is above and beyond the effort shown by others.
For instance, he literally went out of his way to meet us at the vaporetto stop and accompany us to his place. He took a good deal of time to provide tips about the area (e.g., sights, restaurants, etc), made reservations for us when needed, and helped us make a tricky bus connection when leaving.
He even allowed some friends we knew to store their luggage with him until the other Airbnb they were going to use was ready, giving them their own key to his place so they could retrieve their things when convenient.
The accommodations were spotlessly clean, complete with helpful tourist resources, and included a good selection of breakfast options.
Needless to say, we'd be delighted to stay with Antonio any time we return to Venice, and we're glad to give him our highest recommendation.