Hana doesnt last. Reports are out that they burn out after 400 hrs. I want something that will do a 1000 hrs.Not sure where you’re getting your info. I haven’t come across any such accounts despite my frequent participance on multiple forums. Occasionally an MC cart needs to be demagnetized, which is a simple, zero-cost procedure that a caveman can perform.
As for stylus longevity, those who I consider the foremost experts seem to agree that 500 hours is the limit for about any advanced diamond cut before it begins to cause record wear. For conical and standard ellipticals, that number is even lower, closer to 250 hours. You could take the word of a manufacturer who has a vested interest in selling you his cartridges, and thus very likely to make exaggerations, or seek out some real independent research. The linked blog post is worth a read for any analog enthusiast:
https://thevinylpress.com/the-finish-line-for-your-phonograph-stylus/
All I can tell you is that I’ve owned both carts and the Hana SL is superior by a wide margin. The only feature liked of the Carmen was its threaded body. The Hana ML does have a threaded body and would be my choice if budget allows. That or maybe the well-regarded AT ART-9.