Find another house to buy. You'll have nothing but regrets and you'll wish you bought something with decent mechanicals.
The lawsuits of this product should be enough.
You most likely won't get a repipe out of them; they'll tell you (as some on the net will too) that their is nothing wrong with it and works in my house and that's good enough for everyone.
Not so. Talk to the victims to get a true sense of how this product constantly causes property damage along with taking money out of your wallet.