The Polaroid Change may not be everyone's cup of tea because of angle issues, but it does have one aspect to it that really sells it to a laymen that a lot of changes don't have--the card being changed happens away from the deck.
A convincing color change away from the deck totally rocks laymen--and I mean on a "real mystery" level. There are a lot of color changed out there that, to magicians, look great because of their visual nature. But a lot of laymen know what's really happening--the cards are being switched in the deck. They may not know how, and they may be impressed by the visual nature of what's being done, but they know what's happening. That's why I, personally, prefer the Twirl Change or just a simple Top Change.
I think the flaw of the Kodak Change is the same as most color changes--the card has a moment where "something fishy" happens too close to the deck.
I don't do many effects that are angle sensitive as I'm usually working in near surrounded situations (which is why I prefer the two changes I listed above all others), but still, I'll take harsher angles over fishy moments every time. True Astonishment is what I'm after--not clever tricks.
I do applaud Kodak for coming up with this change though, as it is creative and he obviously put some thought into it. And I'm sure the future material he comes up with will just keep getting better. I also applaud him for just trying to create his own material as opposed to simply waiting for the "next big thing" to come out. And for not trying to sell it as so many are so quick to do, but instead giving it away for those interested. Kodak, my friend, you are a gentleman and a scholar.
I'm sure not everyone will agree with my thoughts here, but I thought I'd post them for the sake of the discussion. Agree or disagree--this is a great topic.
