First of all, there was nothing wrong with the appartment per se. Really great location, very close to a Vaporetto station, still very quiet. Not much restaurants close by (the one in the building is rated very badly so we did not go there). Apartment has a nice layout with a very large and a smaller bathroom ensuite. The kitchen is quite large, but could be equipped a bit better. Only one real wine glass for up to 6 guests is not sufficient. First supplies like cleaning tabs for the dishwasher, dish soap, etc. are provided, which was great.
Upon arrival we noticed that the floor of the whole appartment (all terazzo) was very sandy so we had to vaccum it (to no avail as the vacuum has not much suction) and mop it through, completely. The mop and bucket were very sandy, so I guess it's a common phenomenon there. Also one blanket and the tablecloth were not clean/not exchanged from the previous rental - we had to wash it in the washing machine.
Beds were quite comfy - no complaints here.
We did not use the TVs as there were only italian programs on them (cable) - no possibility to put on Netflix, Prime or the like - no major problem, though.
Water pressure seems to be a problem in the house - showering in the en-suite was more like standing under a light drizzle. Also the faucet on the wash basin had only very little water pressure and flow. The large bathroom was a bit better, though.
Unfortunately the faucet in the kitchen broke apart on the very first day of our week. Our request to have it exchanged went unanswered for three days (public holidays) after which a brand new one was installed.
Based on our stay and the hiccups we experienced, we can only give three stars. With a quicker reaction to the maintenance issue and clean sheets it would have been a five.