I must say it has been a big lesson in genetics, I had no idea when we bought our first Neos what a challenge they would be.
Had I known I doubt I would have touched them, and would have missed out on dogs with natures like no other I have yet found.
Even after 15 years plus of breeding I can't say I have gotten rid of faults, I have improved health and longevity in the general population, but not in all individuals, I think the breed is just too inbred and been bred too big too fast for the good of the individual dogs, too many die young.
I would rather a smaller plainer dog who lives ten years and maybe more than a huge dog who dies before age 4 far too often.
Oldest of mine still going that I know of is 12 years old now and still well.