I think it's worth the money... elastic suspension from chinese munufacturers are a joke and neumann replacement are an insult...
It really enhances the sound of mics... I wish i had ten, i eq stuff a lot less since i use the m600 and it make chinese ribbon a pleasure to use
you can get an M600 and somenting like 15 china ribbon with the price of a royer... to me it's a real bargain
Thomann ribbon are awesome!