Whispergen Generators are made here in New Zealand. I have installed several in houses throughout the country. The clients have have found them to be a reliable unit.
I personnnally know one of the developers.
I know of several installations in super yachts that have been and are being built here in New Zealand.
I would love to install one on the 'Gypsy Rover', but lack of space is my problem even though the unit is very compact.