Clever design and well built.  Keeps the cards snug but doesn't scrub the magnetic strip since the cards stick up just a little bit out of their slots.  The clip holds cash secure and I have had it hold anywhere from 1 to about 12 bills at a time.  It also is quality leather, or at least very good fake leather, and looks like an expensive wallet.  My favorite feature is a separate slot on the outside that will completely cover cards, which is good for private stuff like ID and insurance.  Makes it very easy to slide your ID out without having to even open the wallet.