I stayed 5 nights in Regina's appartment when I was visiting Venice. The flat is very nice and clean, kitchen fully equipped, view on a canal, not too hot even at the beginning of summer. It is located within 10-15 min walk from the train station or the Rialto bridge, which makes it very convenient if you want to visit the city. I haven't seen Regina herself but communication was smooth and she was quite helpful. I was welcomed by Regina's flatmate Alya who was very welcoming and provided me with many good restaurant advices (thanks again for that!).
Only one thing to mention, the key to the street door was a bit difficult to use and I had problems to open it on my very first night, so make sure you are shown how to use it properly before you leave the flat. Otherwise everything was excellent, I highly recommend this place and will come back with pleasure!