We stayed in Carla's appartment for 5 nights. It is a lovely place. We appreciated the air conditioning, the two bathrooms and the washing machine. The location was perfect since it wasn't too crowded with tourists but still walking distance from the heart of Venice (20mn to Piazza San Marco).
Carla is a very nice person. She welcomed us near the train station and walked with us to her appartment. She spent time answering our questions about the sites and how to get there and helped us find a way back to the airport.
I highly recommend her place.