The place is fantastic, new, clean. The location is ok since it is out of the buzz. It makes you walk a lot to get everywhere, but fine, the city is beautiful. The only problem here was unfortunately the check in. I am a Venice frequently visitor, I've been there 3 times on the last 4 years, always with Airbnb. Although this time It was different since this flat is run by an agency. The service of the agency is very good and they are friendly and practical. The only problem is that if you need to arrive out of weekdays, working hours, you need to pay up to 50 euros just for keys handling, plus the 4 euros per person per day of tourist tax, we needed to spend 74 euros cash at the check in. Today, I am an Airbnb frequent user for 10 years and this was the first time it ever happened. I had spoken to Grazia many times before confirm the booking and this could be mentioned. As she said, it is written at "the house rules", but when you're on a big trip in Europe, this can be easily missed. Since this extra charge is quite expensive, it should be clearer on first messages exchange.
As everything that starts as a genuine person to person service, Airbnb is now intermediated by agencies what makes the whole experience less disruptive and more expensive.