What a complete waste of money Amex has expended on this worthless thing. I was invited and it required I phone Amex as opposed to the "online" registration. The "case" is more annoying that Dick Cheney. I've had the butterfly for about four months and have yet to use it...and don't plan to use it. Worthless. I've been a cardholder since 1979 and have seem some stupid campaigns and this is the MOST stupid.