It's the internet, don't believe everything you read/hear. My friend had replaced both tweeters on his M3 himself, with great support from his dealer and Magico. My dealer also confirmed that this report does not match his experience.
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.