We really enjoyed our time in Venice! Caterina's house is beautiful and is about a 30 minute walk to the main train station (Santa Maria Novella) but is easily accessible by bus with around 3 different bus routes coming within a 50 metre radius of the building, there are other buses that go from there as well so you're not far from anything. It is in a quiet area and a supermarket it nearby giving you options to cook at the house. We noticed that it was rather warm during our stay, so we'd recommend bringing along some light clothing. Other than that, we had no issues during our stay and would not hesitate to book with Caterina again :)