Very good place to stay, and Heini is a really nice person and easy to reach if any help is needed.
However, this house is really made for summer period. During winter: no heat in the rooms nor in the bathroom (and the shower water temperature is quite low), a lot of humidity, and the electricity may go off if too many people try to use their small heater or cook at the same time.
These are my observations after staying in this house for 4 months, knowing warm and cold times there.
I still recomand Heini as a host and her house to stay for summer holidays: very wolcoming, close to the beach, and having many guests in the house creates a really good atmosphere.