Gore-Tex has lots of very fine micro-pores.
It has softer texture and absorb-ability and therefore used for people with thin nasal skin.
Tissue grow into micro-pores which allows implant to be fixed easier, in the other hand, removal of the gore-tex nasal implant is not easy. (This may be different depending on experience and technique of surgeon).
Also, Gore-Tex can be carved and customized by surgeon for each patient’s nose, allowing more natural result.
As for cons of Gore-Tex, it is difficult to remove and if surgeon does not have enough experience, nose can be lower than expected.
Other cons of Gore-Tex is similar to that of silicone.