I tried them and got an MMC2 back this week. For 159,- Euro (including postage from Germany to The Netherlands), they replaced the cantilever, the stylus and suspension, using a nude line diamond stylus with a sapphire cantilever. It really sounds like new again!
I bought a Beogram 8002 of eBay last year in a beautiful condition, but it came with a broken MMC2, which I thought I could just throw away. Last year I also got an SMMC2 from Soundsmith and really liked it, but it always bothered me that it didn't have the words Bang & Olufsen on it. Unfortunately I dropped the SMMC2 and the cantilever broke.
I called Soundsmith to check if they could repair my broken SMMC2 and MMC2, but since the cantilevers on both had broken of, they couldn't repair them. The price of a new SMMC2 from Soundsmith is suddenly much higher then last year and you also have to pay high import taxes if you live in the Europe.
Looking around in old posts on Beoworld I found the website http://www.schallplattennadeln.de/ and decided to give it a go, sending them the MMC2 as an experiment. Within a week they returned it and it's working great. For those who have broken MMC's, it could be a solution, since it's very nice to have an original B&O MMC on you record deck, plus no import taxes for EU citizens on the transaction.