We had a great stay at Roberto and Guadalupe's! We needed a place near the Santa Lucia train station for a night and this place was a treat. It was the nicest apartment we stayed at in all of Europe and the price was extremely reasonable.
It was clean, modern and only a few minutes walk from the Jewish Quarter, train station, and more.
Plus, although it was new the station, it didn't feel like it. It was down a quiet street in a residential neighborhood that was nice and calm for our last night in Venice.
Highly recommended!