I've been using this for months now.  I wanted something smaller and square to fit in my front pocket when necessary, and also to fit next to a pocket knife in my back pocket.  I like this a lot.  After months of use, it still holds on to my cards and ID's securely enough, and the mechanism hasn't failed.  I hold 3 ID's/cards without imprinting and 2 with, and I could proably fit one more in there.

The money fold works well enough.  I keep some cash (USD) and a couple checks in there at any one time.  You fold the top third of the bill into the fold, and the rest of the bill wraps around the wallet case.  It's not as fast and efficient as a bi-fold if you use cash a lot, but works fine if cash is needed occasionally.  The glue that holds the plastic fold to the aluminum case works fine, and was only stressed when I had to carry a wad of cash in Las Vegas for a few days (wad was about 1/4" thick before folding it).  About 1/3 cm of the glue came undone along the edge, and now with more normal cash carry, that small area has reapplied back onto the aluminum.

I carry a few business cards and other less used cards in the leather pockets.  It takes a few weeks of use for them to break in.  Originally, the cards fit VERY tightly, but now it is not difficult to take cards in and out of the pockets.  However, I wouldn't use them for high use cards/ID's.  It will deform/abuse business cards during the break in period though... although part of that could have been me trying to get them in and out before the break in had completed in the first place.

Last, the brown leather is nice and soft.  It shows wear, which is normal for this type of leather and adds character.  This is not the shiny, waxed leather many wallets use.