Not only do the cashier not care when I use mine but I have to tell that I was very disappointed when I got mine. I have never seen the real CSP card before I got mine and from reading all these comments how nice the card looks I have to admit I did expect a super nice looking card and what a disappointment 
...the card is nothing special and honestly the new Barclaycard Arrival + WEMC looks much nice to me...lol
No reaction whatsoever since most places I go to, I have to swipe the card myself. But I've seen reactions of people when they see Centurion card for the first time. 
I have worked retail and I will tell you the only cards that get my attention are Amex especially the black centurion for obvious reasons and the platinum or gold amex charge cards. A kind of random one that I like is the marriots rewards chase because its metal and black. Don't really care much for the chase sapphire but that is just my input
