Put these new cards into play for ~8 hours last night. Still a great shuffle and deal experience, best bang for your buck! (Forgot to get action shots.)
Did have more instances of cards from one deck getting mistaken for the other deck (again, mostly when a previous dealer is collecting his cards--we shuffle behind in this game--and accidentally scoops up the cards he was dealt in the current hand and starts shuffling them with the other deck). So we're very much already looking forward to another print run with different color backs and then we can split up these light blue/light green decks and have each of them paired up with other color decks.
(I know we can do this now with the black/gold, but my group was one of those who had a lot of trouble confusing some of the printed numbers and also between the spade and clubs in the art from the original run.)
Did notice a few small gray spots appear on the cards I've noticed this on some Desjgn cards in the past, and I know others have experienced it too with different brands (too lazy to find the threads on this right now). Wipes off completely with a damp paper towel, so no big deal there, but strange.