I have only had experience with one and it was in the SF bay
. Its on a Tayana 37
SV Alchemy. Every time I would go out with Geoff the genny would not be running, I said whats the deal, he said the noise
was bothersome and he didnt need the energy. Later that day he came on my boat with the rutland running around 10-15knts and he was shocked at how quiet the rutland was. He was attesting on how his was much louder his was, again the rutland is virtually silent.... really it is. Also he said that the Silent wind didnt really start outputting anything till 20-25knts, very similar to the Rutland, it start actually putting me in the +amps around 12knts when my solar
is off. This is me not trying to bag on any brands, just first hand experience and tales from actual owners.
PS, the kiss has a cut off to stop the rotors and overload protection.