If I could I'd stay at Dario/Iber's flat for a month and more. It is so comfortable and convenient. Ample space for us three to stretch out. Safe, brightly lit, warm (it's Winter), canal view, and literally steps away from everything. Downstairs are great eateries and coffee shops. Rialto Bridge waterbus station is 2-3 mins away. Just book the place. I would do so without a doubt. Review is much shorter than I could write since I am still traveling.
I hope to return again soon.