I was fortunate to be in the presence of many Barbets recently on 2 different days. Once at the Detroit KC Meet the Breeds, and another day at an Open Show (their specialty) in KY.
I didn't talk to them in depth about the breed, but they seem very happy, healthy, and a great alternative to the doodle-mixes. On my FSS Facebook page it appears there aren't many US litters. Always a problem with new FSS breeds. But I'm sure the breed club could help you out.
The coat is like a poodle, so you need to learn to groom or pay for regular grooming.