We had booked the place indicating it will be 3 of us.
There is one double bed and one sofa bed, however, there was not enough linen for the latter and we had to somehow sleep on the same bed for the night.
Also, the bathroom sink wasn't letting the water through.
We messaged the host and tried calling him multiple times, without any reply even today.
If we had been staying there for more than one night as we were, we would've had to find ourselves a new place, which is an almost impossible feat last minute in Venice.