Mina is a very good host and even welcomed us with a bag of cookies. Her place is just as pictured. About 10-15 min from Piazza San Marco and 15-20 to Rialto Bridge, provided you don't get lost! Bus stop to go to the train station is a 1 min walk so it's very convenient. Make sure you buy your tickets at a main station because you can't buy them on the stop.