Martina's place is great. It's right in the middle of Venice and 5-10 minutes walk from the railway and bus station. When we came we were provided with breakfast (cookies+ cakes) for the following morning and a lot of coffee and tea. The coffee machine is excellent, capable of making very good coffee in 1 or 2 minutes! The room is equipped with air-conditioning, which saved us from the heat of Venice August! Also, we were provided with a map, with recommended and clearly marked-out walking tours of the city. Overall, Martina is doing serious B&B business. I highly recommend her place.