Fiber rigging, like Spectra, Carbon Fiber and PBO is interesting, but not really ready for prime-time usage yet.
I also think it's a bit early for regular sailor-folk to be adopting this stuff. It's ideal for deep-pocket racers who can afford to replace it at the first sign of trouble, and who are constantly inspecting their rigs to identify trouble before it starts.
I am thinking that there may be some issues with UV degradation over the long term. Although I am under the impression that there is a shielding layer on it, chafe and wear could possibly erode the shielding, leaving the cable exposed to sunlight, in places that were not noticeable from the deck...
I'm going to wait for a few more years to see how it wears...