The quality is good and it is smaller that a full size wallet, but this is definitely not a minimalist wallet. The photos show my current 'wallet' compared to this one. The Runbox is significantly larger, even when empty, compared to my current wallet with my cards and cash in it. When the Runbox contains the cards, I think it's roughly double the volume of my current wallet.
If you want a small wallet, this one is pretty nice. If you want something "minimal" this not it.