As a driving instructor my clutches get well tested.
Peugoet 206 = lasted 400000 fortunately just after I traded it in
Ford Fiesta tdci = lasted 730000
Vauxhall Corsage cdti = lasted 740000
Toyota Yaris diesel = currently on 123000 and getting heavy but working well.
So the Dmf is definitely an improvemt but just expensive when they go:)