I liked these and my players liked them and we don't even play the d20 system.
The artwork is OK being diverse and generic enough to be able to represent almost any weapon and at the same time friendly enough towards printing economy even with everything turned on.
The one thing I am missing is to have the weapon stats being form fillable in the PDF so my lousy handwriting didn't spoil the experience for the user.
For only one dollar I can recommend these to almost anyone regardless of system. We use them for Conan, Runequest and Talislanta.
Hopefully armor cards aren't far away.
[4 of 5 Stars!]