High quality, nice finish mouthpiece.
The edge is very rounded just like Claude Gordon wanted, also the throat is large and easy to blow in.
The idea with this mouthpiece was to practice a lot to hit the notes and be able to blow with a big volume when needed with a resulting full sound. Claude was a training routine freak, read up on him and listen to his recordings :)
If you need a completely round edge mouthpiece (no flats at all) that is also fairly large-feeling diameter because of the round edge then this is very nice for all round playing.
It might not be ideal for all players since there is no bite at all to "anchor" on on an inner edge and also the round rim will not fit all players but some will love it.