Lucia her place is great if you're on a low budget and want to visit Venice, but take into account that it is hard to communicate with her (She doesn't speak English). I booked a three person room for two (but paid more because it was a three person room) and I texted her a few weeks before our stay if it was ok if we brought a friend for our last nights there. She did not respond so I assumed it was ok. When we arrived we suddenly had to pay €75 extra which was an unexpected bummer.
This could have been prevented if she had the necessary communication skills.
Besides this she was very kind to us.