First thing I have to say is that the Bovolo dwelling is the best apartment we have ever stayed in from AirBnB so far! The living room and the view from it of the Bovolo staircase is incredible. The pictures do not lie, reality is even better. Tommasso has thought of every detail, the furnishings are tasteful, little touches like cushions for sitting on the windowsill, etc. are very unique. The AC is wonderful, and cools the whole house very well. While there were a few mosquitoes, there were very effective repellants provided, and we didn't get bitten. The kitchen is supremely well equipped. Our 6 year old twins had to sleep on a long bench in the second room, which was fine, but probably wouldn't work for older kids. The location is incredible once you figure out how to get there. It a simple, flat 5m walk from the Rialto Bridge, and also within 5m of San Marco square. We had a small draining problem with the shower, and the handyman showed up right away!
My only complaint is that we had a terrible check-in process. We had just arrived into town with lots of luggage, and we had to go all the way to a hotel to pick up the keys, and then trudge back to the apartment with all the luggage, over multiple bridges, on a hot day, and felt exhausted at the end of it. All it would have taken is a simple note suggesting that we leave one of our party with the bags at the apartment, while the other fetched the keys, or to have someone meet us.
I highly recommend the Bovolo Dwelling for everyone, its an incredible place, notwithstanding the check in issues.