I have worked with it during my time playing about with aircraft and having to destroy components to prevent there future use once they were found US or had reached the end of there life cycle,
It is hard to saw when in any thickness over a cm,
It is hard on you sanding shaping tools in any weave,
Price = quality,
And you MUST protect your lungs, eyes and ears, this stuff is VERY nasty as an airbourne particle, dont think dust mask, think respirator with the appropriate filters, google if the resi has no eye protection built in and a dust suit with elasticated hood,
Having been lucky enough to have had a play with JonD's Deval bushy in CF i love it, the cross grain was super grippy, it didnt feel cold and lifeless like some man made stuff does, Nice kit if you can spend on the good stuff dude!