To be completely honest, Getz barrels are as good as any, but IMHO, not any better than most of the other brands.
The impression that I get from Don is, that John is working long hours nearly every day to fill orders. John isn't answering the phone or emails, simply because he is busy making barrels. Nothing more.
That said, anyone ordering a Getz barrel is in for a long wait. There are a few barrels available from some of the suppliers, but they seem to be few and far between.
Dixons, Buckeye barrels, or one of the larger suppliers may have something from Getz in stock, otherwise Rice, Rayl, GM, or another of the makers can supply anything anyone might want.
God bless