You won't find many Kokatat naysayers in this crowd. I have an NRS eVent drytop which is great, the material is lighter, more flexible and a little more breathable than Gore-tex. So far, so good in the durability dept. I think eVent would make a great, more comfortable, but maybe slightly lighter duty (OK for me) drysuit than Gore-tex, but like everyone else here, when it comes to drysuits, I'm sold on the Kokatat/Gore-tex customer service record. When Kokatat makes an eVent drysuit with the same warranty, I'll buy one.