First off, I love the look of the Grip 6 wallet: clean lines, obvious mechanical clarity, smooth aesthetic. I purchased the red wallet with the brown leather holder about a month ago, and I still smile when I pick it up to put it in my pocket. The functionality of the "lifting" device works as advertised to provide easy access to my cards as well as to keep them secure. The finger loop is effective and by no means intrusive as it may at first appear to be. I do, however, have an issue with carrying cash. The leather outer wallet, with the 'hole' (view port?) in it, was clearly not designed for this purpose. The folded cash gets snagged on the inner hole, or the inside of the angled exterior sleeve, whether you have too few or too many bills. It has kept me frustrated and prevents me from truly enjoying my otherwise unique and stylish wallet. I would highly recommend the GRIP6 wallet for it's original function (card holder), and I truly hope they can adequately address this going forward.