Well I cannot change your opinion but I would say that the resin does feel a bit brittle-ish. I think its all about the wonderful nib here.
Brittleish sounds about right, heh. I'm not too scared of the resin developing any cracks, though. It just feels slightly cheaper than what I expected.
That's pretty much the only real negative thing I can think of. And well, in my case, both nibs were misaligned. But other than that, a really beautiful and reliable pen! One of my absolute favorites.