The rooftop was a great touch for the place. It should have a table and some chairs because the place is awesome for star gazing. In the house all the beds are singles and united, but they are metal structured and have a wooden case(which can be a little disturbing for your feets when you wake up, but wasn’t a problem for us). The smell inside the house was a little old, but if you open the windows there will be no problem. Everything else was ok and we had everything we needed.
In the end, it is a good place to stay when you’re going to visit Venice for the price you pay.