Iber was a very kind host, who came to greet us at the Vaporetto station and helped us with heavy luggage (There is a bit of steps to get to his apartment from the water taxi station), very responsive and helpful in communications. The location is perfect as it's located at stone's throw from the grand St Mark square. Just 10 steps away.
2 things that were not so good - "mosquitoes". I think he could have warned us about mosquitoes especially if anyone is sleeping in the sofa bed in the living room, the cleaner shouldn't have left the windows open to prevent the mosquitoes coming in. Secondly the water heater. There was miscommunication on location of the heater. It should have been turned on all the time, but somehow the switch was off. Iber claimed that it could be one of my kids but they didn't even gone into that small room to switch off the heater because we hardly stayed in the apartment till we back came to take shower from long hour of sightseeing. In the end, no shower till next morning we finally found the location of the switch.
Overall, good location but no good sleep, no good shower, quite miserable. But it's not the host's fault... maybe we were just unlucky.