Nicola's place is good. The location is quite alright, located not far at all to a very lively street that will lead you to next to San Marco. The bed is comfortable, and the apartment is reasonably quiet. The amenities are great, as obviously the owner lives here part of the year, so it is well stocked!
One issue we had is with power: we tripped power two times in the first couple of hours just by switching on the hot water (not using aircon or anything that draw a lot of power). But eventually this normalised. But because of this we were careful so never got to really have hot water - but it was hot enough to take showers, especially considering Venice was super hot at the time and lukewarm showers were actually welcome! Nicola was super responsive and reactive. Last: don't expect a very modern and hip apartment, but the convenience and how well it is packed up probably beats that. Thanks Nicola!