The Odyssey White Hot Putter really put insert putters on the map for golfers around the world. Using one really does give you a softer feel that many people say gives them better feel for distance especially on fast greens.
Odyssey had had a range of stronomic insert putters (stronomic is a made up term as far as we can find out!) which were moderately successful commercially, but the White Hot Putter really took off and has led to many different models and ranges since.
Sorry to keep going on about it, but the one thing that is common to them all is the sensation you get off the face, which we at Best-Putter.com feel is superior to all the other insert putter we've trialled, reviewed and owned.