Yes, Don. Why do you say that? ZYX is extremely popular outside of the US, particularly in Asia, especially in Japan. If I would fault them it would be to say that they have far too many models with too many variations on the same theme, such that choosing among ZYX cartridges becomes a bit bewildering. Could be a turn-off for some buyers. It's particularly weird that the Universe line can only be purchased in the US, or at least it cannot be purchased in Tokyo. (I know this; I tried. A reputable high end dealer in Akihibara, who once sold me my Koetsu Urushi, did not even know there was a "Universe" line. This was last October, in the presence of my son to act as interpreter.) Whereas every other ZYX variant is also available in Tokyo, including I think the Ultimate series with the carbon fiber cantilever.
Which brings us to the CF cantilever. I don't see how it could sound "just like" the boron cantilever. Historically, I have not liked the interaction of CF with audio reproduction. It often to my ears sounds like CF parts overdamp the system; the sound seems a bit muffled, even. Whereas the typical ZYX cartridge is anything but overdamped.
I have a ZYX UNIverse, the original model with 0.24mV output and copper coils; I think it's absolutely a great cartridge, perhaps my favorite. This makes me lust a bit for the UNI II, but I remain a skeptic as regards the models with CF cantilevers.
