Which is awesome, but then it shouldn't cost this much.
Unless if it's made of some of the actually ultra high performance plastics, like maybe polycarbonate or carbon fiber reenforced PA-6/PPA for example, but I highly doubt that's the case
Great for strength, bad for impact resistance. You'd want a non-filled material or at least less stiff filler. Something like aramid (kevlar) would give you good properties across the board for an application like this though.
Carbon fiber can't handle impact? Nonsense! I've got a Stockton Rush paper right here proving otherwise! He even built a whole submersible to go down to the titanic. Next thing you say it won't handle pressure cycling either? Poppycock!