Lots of slots for lots of cards.  One nice aspect is that, with slots on both sides, this is a good card case for left-handed people.  Maybe you other lefties out there carry your wallets differently than me, but my last small wallet had card slots on only one side, and I would slide it into my right back pocket with the cards towards me and the slot openings up.  When I would pull it out of the pocket, the thing would be upside down.  If I put it in my pocket with the cards away from me and the outer slots up, it would come out of the pocket right side up but with the cards on the side away from me.  With this case, it will come out of either back pocket right-side up with your most-used cards on the side that faces you.  But if you are going to use it as a wallet, be aware that you are going to get *maybe* seven bills folded in half in the middle slot, and you might have to take the cards out to let the case be flexible enough to get the bills in.