Phill Hartsfield made knives that held extreme appeal to a limited number of users / collectors. He originated a style that has been copied by others who thought they could improve on it with a supposedly more refined product at a lower price, but something was always "lost in the translation". How Phill heat treated his blades, created his hamon, temper line, etc...is still a guarded mystery. Find 5 different people who say they know how he did his blades and you'll get 5 very convincing explanations. But they'll all be different. It's been like that ever since I first started reading about Hartsfield blades.
In business, Phill stood by his word and did the best he could on each and every knife. If he said your knife would be ready in 2 years, you could plan on having it with you on that hunting trip that was 2 years and 1 month out. His prices were high, his warranty was "solid gold" with complete customer lifetime satisfaction as the promise. Phill was the very best at what he did and what he did was special, unique and his own. He is one of the world's classic knifemakers.
Pete