Highly, highly recommend Giovanna and her fantastic cottage. Giovanna was extremely helpful and accommodating. We walked from the train station to the apartment before checking in, but then we got lost and Giovanna was so kind to come retrieve us. Follow her directions in the email so you don't get lost like us! She gave us all the local tips, provided us recommendations for excellent places to visit, and she even gifted us local wine for our anniversary! The apartment is close to the Guggenheim, Accademia Bridge, and water bus stops. We opted to walk everywhere and it is completely doable from her apartment, even though it is tucked away from most of the tourist spots (nicely so, I'll add, because you're away from the crowds and the noise).
The apartment is absolutely gorgeous and is tastefully decorated. The hot tub was a godsend, especially for relaxing our sore muscles after a long day of sightseeing. 12/10 would come here again!