Is Kitec Plumbing a deal stopper?

Looking at purchasing a home with Kitec plumbing. Home is 11 years old and the owner has never had an issue with it, but not sure I want to take a chance on a long term hold. $125 million payout in a class action lawsuit definitely says there is a problem with it! Anyone have experience with this product? It seems like the biggest issue is with the connections, but there may be issues with the pipe itself. Would you require the owner to replace connections, entire system, or am I being obsessive-compulsive?