Stefano's place is best. I stayed there for one night. I wanted a neat a neat and clean place near the central area and Stefano's place serves the purpose. It's sparking cleans, both room and bedroom. It is very near to Rialto bridge and water bus station like five minutes walk. For one person you will not get this kind of perfect place (with private bathroom) at this price. Besides Stefano is always available on phone for any help.
Notes for other travellers.
It's on third floor, and at night there is no light on staircase. But you can use your phone torch.
Stefano's gives you clear address to reach, still in case you find it difficult to reach then look at the directions given by another guest name Holly. Check it in her reviews, its just upto mark.
I found this place safe, come and go any time. No problem.