A few heads-ups:
* Every host pays taxes, electricity, whatever, but most add up their costs and post a single price that you pay. The price here excludes a €4 tax per person per day that you will have to pay separately, so read the price posted here at airbnb as a slight understatement of what you're actually paying.
* The photos have some distortion in them. In one of the photos the bed looks much longer than it is wide; in one it looks much wider than it is long---the answer is that it's longer than it is wide. The floor tiles are squares, so you can use that as reference to see where the pix are most distorted.
* Note that the bed is a fold-out couch, and is exactly as comfortable as a fold-out bed ever is. Some photos have the bed folded back in to the couch, so you'll only have the space shown if you are in the habit of folding away every morning.
* Due to the inherent constraints of an island city, the trash situation in Venice is complicated. They pass that on to you: your cleaning fee does not include taking out trash.
Venice is an expensive city in terms of real estate, so expect a small-ish space. There are few windows---mostly in the bathroom---so a flood light is provided. It was cold-ish for us and we used the space heater and boiled water for tea, and doing both at the same time tripped the circuit breaker (if it happens to you, the circuit reset is at the top-right of the front door). The shower is very small, to the point that it's awkward to use without getting water everywhere. It uses a tank system which I haven't seen in a long time. Unlike the on-demand systems used around the world, the tank runs out of hot water after only a few minutes.
A final pet peeve: easyRentals had me fill in a form with my contact info, flight info, and so on. It seems none of that information was used, and I had to re-supply all of it over the course of arrival and check-in. If they ask you to fill in an arrival form, I'm betting you'll be able to just ignore the request and save everybody some time.