Werner Stengel is one the greatest coaster designers of all time. Throughout his career, he has had direct influence in the design process of some of the greatest coasters off all time, including Millennium Force and Bizzaro. His 500th roller coaster was celebrated in 2007, with the opening of Maverick at Cedar Point, a review of which can be read here. He is a truly great part of the coaster community. He advanced the technology and excellence of roller coasters to a whole new level of greatness.