Grip:
N.Y.C. has a nicer grip, less slip
Curvature:
N.Y.C. is flatter
Pad-wise for curling, I find that the N.Y.C. one is a little bit stiffer, but seems to curl well.
As seen below, it also has a spring
Fatal flaw? It doesn't close all the way. I'd only be able to curl my outer left eyelashes with this, or the inner right eyelashes... Not the most practical. Luckily it was only $1.99
Have you had this problem? Or is mine just defective?