The problem is this: some cables use an FTDI brand USB to UART chip internally, but that chip is more expensive than some other less reliable alternatives. So if you're looking at a $10 or $12 cable, it's very likely to give you trouble.
That said, rich is probably just wrong - it looks ALMOST identical to my cable which does work (and which I paid $50 for, not $100). The real question is, are you willing to gamble $25 to find out? I'd give it 75% chance that it works alright, 25% chance that you get super angry at it and annoyed until you give up and spend $50 on a different cable which works right away