We really liked our short visit to Hawea. Kate was a very welcoming host, communication prior to check in was also easy.
The room was extremely comfortable and nicely prepared, looked like in a 4 star hotel :). Everything was super clean and Lake Hawea is a beautiful place (did not know that before). Kate's house is just a short walking distance from the lake and there are a lot of things to do if you stay a little longer. Unfortunately we just spent an afternoon and a night in Hawea so we only walked a little bit along the lake and enjoyed the amazing view. I would recommend spending a few days in this region, you will not be disappointed.