So here's my two cents.
These are great cards, but as saborfang17 said, they are stiff cards.
1. They don't fan well. If you are into XCM or things along that line, this isn't the cards of choice.
2. Cards stick together, but not in the old cards sticking together kind of way. Thanks to this property, doubles look awesome. However, because of this, I couldn't do my usual bottom deal, had to go back to Erdnase. However, passes and those, it works great.
3. I only saw this at the magic shop, so I didn't have long time to play with it, but supposedly it last longer. They are not particularly amazing perse, but arguably, if it lasts longer, price might be right.
If you are into Dan and Dave kind of material, this is not the card. But otherwise, it might be worth giving it a shot.