Wow, this long of a thread, and it hasn't really been mentioned - can't pee in a drysuit. Well you can, but it'd be pretty nasty.
And don't pretend like that's not important.
The NPX Lucifer has a crotch zipper, so at least once you're on the beach you can take a leak without taking off your whole suit.
A lot of talk about breathable drysuit materials here also. Since the Lucifer is such a different drysuit with different features, it's often overlooked that the material used is very breathable and soft. A lot of people tell me they're suprised how the Lucifer doesn't feel "plasticy". It's not shown on the NPX website, so here's what the Lucifer is made of for any tech-heads:
Outer: Polyester Twill
Middle: PU (Polyurethane) Membrane
Inner: Nylon Tricot