On such a small island it's hard to be in a bad location, but this place manages to accomplish that. Boat stop is on the outer edge of the city. Not near any significant attractions. Walls are dirty with dead bugs (I have video of it if anyone wants to see).
But the worst thing about the whole experience was the host Marika. She gave us a very weak key that was bent and it finally broke on the 3rd time using it. Because of this, we were locked out of the apartment with vital medication (insulin) locked inside. I explained the situation to her, but she would not send help unless we paid 50 euro. What a scam. Give someone a weak key and make money when it breaks?
Luckily, we were able to wiggle the broken part of the key in far enough to unlock the door. So we were able to get into the apartment without having to pay her friend the 50 euros (I also have screenshots of the whole conversation with this scammer). If we hadn't been able to get inside the apartment that day, she probably would have kept all of our things hostage until she got her 50 euros.
Stay somewhere else when you come to Venice... there are so many other options. Hopefully you won't have to deal with Abitarenext and their awful, cold-hearted employee Marika.