For any problems this place had, it was saved by the magical feeling of Venice and the impeccable design of the loft.
Starting with check in, go to the address of the rental company provided by the host, not Google Maps (in fact, try not to rely on Google Maps very much in Venice at all, it does not understand how the city works haha). Once you've located the company's office and retrieved your keys, they are kind enough to provide pictures along with written directions to the loft, so you dont get lost in the maze of Venice.
They also provide detailed instructions on the garbage collection system in Venice, so be prepared to: (1) take your garbage to a collection point between 6:30 - 8:30am, the points are marked on a map in the apartment but have no concrete addresses, so be prepared to poke around a little, (2) wait between 8- noon for a spazzino to ring the doorbell, not recommended as the time is random and they are very speedy with moving onto the next address, or (3) take your garbage to the collection point at P.le Roma, if you exit the ferry, it is across the traffic jumble of busses, on the other side of the square in brightly coloured bins.
Other than that though, communication isn't exactly the best with the host, so maybe aim to get any questions you can think of answered before you go.
Like I said, the loft itself looks stunning. It has so much character, I would have loved to stay longer.
As mentioned in other reviews, the shower's water pressure is weak and the temperature can be fussy. I was not at all bothered by this, but I know some people are passionate about this stuff. Also, the light for the bathroom is on the right side of the wall right outside of the room, not one of the switches in the room itself, just a heads up.
If you are tall, watch your head upstairs. Even I am only 163cm and had to strategically lean/ crouch a bit at some areas. Totally worth it though, the loft is awesome! Be aware that because the bed is 2 mattresses, that they are a little prone to seperating and falling off the bed. Not a major problem, but just to avoid being taken by surprise if you try to sit on the corner of the bed and get dropped to the floor, haha.
A few things weren't in working condition/ as advertised when I arrived. I let the hosts know, but because it was only a brief stay and I wanted to be around if someone else was in the loft, our schedules didnt match up to fix them while I was there. So, when you arrive, just check that all the windows open and electronics turn on. Because the 3 windows in the 2nd bedroom/ 2nd living area didn't open during my stay, I felt I was missing out on the full range of the view I was promised, and I dont want that happening to anyone else.
On the flip side, the courtyard view from the balcony is quite lovely!
There are bakeries and bars literally right around the corner, and even though the loft is just 2 little turns off a busy street, it's quiet at night. (Provided your downstairs neighbours are quiet, because the walls are pretty thin)
The closest vaporetto stop is San Tomà, and I highly recommend the vaporetto day pass for however long you're staying, you'll have unlimited rides and save a lot of money. I know you can purchase it online, but there's also a small office in San Marcos Square where you can buy one too.
Overall, it has its ups and its downs. It could benefit from more clear and consistent host communication and double checking everything is in working order before guest check in, but the location is great and the loft is full of charm.