We stayed for 3 nights in this accommodation in November 2021. The apartment is very grand, well furnished and looks as described in the photos on AirBnB. It would be great for a larger group, as the size of the lounge area is huge (there was just the two of us). The apartment was faultlessly clean and communication was fine - it is a 'corporate' let, so perhaps lacks some of the friendly touches that we have seen on other AirBnB rentals, where the owner is very involved with the letting.
On the one hand the location is fantastic, right in the heart of San Marco and the canal views were lovely. But this aspect is also the biggest drawback of the apartment, especially if you are a light sleeper. The bedrooms are more or less on water level, right by the canal and the noise level kept us awake, or woke us up, on two of the three nights we were there. Not much that can be done about it (not sure if more noise reduction measures on the windows might help) but it should be borne in mind when booking the apartment.