Bonjour
Andromeda has or had a Navik that failed during the last JC.
It had sailed four North Atlantic crossing before. The supper before the start Sherman explained me how stupid Plastimo was not to have been able to provide him a new on on time! A real novel.
It may be considered as a reliabilty test and a bad custumer service test.

Navik has been very much used on small single handed boat in France (mini's size).
The Navik has a very clever, paterned, concept : a fletner linked to the wind vane.
Plastimo doesn't seem very interested in the Navik (too small a market).

I don't have any fiability comparison and the Navik is a rather old concept.
Eric