As one of the first users of the card, I was genuinely blow away. I upgraded to the founders edition card and its like throwing around a black Amex. Can't stop showing it off!
I was always someone who checked which card to use thoroughly -- too much in fact. But now with OneCard, I haven't checked anything in a while. But my credit utilization rate has never been better. I think my score went up ~20 points so far.
OneCard is really amazing. I decided to go with the completely digital version, using it with ApplePay. Haven't used my other cards since, might even send them back!