I recently purchased an AudioTechnica AT 150 MLX cartridge out of curiosity. to compare to my Ortofon 2M Black
I bought it directly from Japan, as the price point was considerably lower than here in Canada.
Shipping was fast and completely trouble free. I would not hesitate to by from Japan directly again. I also bought an ESP guitar a few years ago from japan with no problems whatsoever.
Do a little research on the seller, and if they are legitimate, go ahead.
By the way, the AT 150 MLX does not come close to the 2M Black for my taste.