I have two, and I'm not a big fan of them to be honest. On me they start creasing almost instantly without a primer. With a primer they work a bit better, but still they crease pretty badly after a while. The only way I really like using them is like a hlighlighter on the browbone or on my cheeks, not really as eyeshadow.
Nars have so many pretty cream shadows, but personally I think there are better cream shadows out there when it comes to quality.