I picked it up on Thursday, got around to playing it today. I was a little hesitant. I don't want to get into a money suck with the cards, but it looked really neat (saw the trailer) and the positive reviews made it sound like something I shouldn't miss, given my love of card games.
So far, I'm very pleased. The game is challenging. There's a lot to remember, and I wouldn't want to play without the PS3 (yet). There's the elements, the directions, the various attacks, counterattacks, and weak points. Plus, I'm still at the point where what a card actually does can be surprising. Flame Magus, for example, initially looked a lot more powerful than it turned out to be, but I think there's fun to be had with that card.
It's a little bit like Duel Masters, a little bit like MtG, and so it feels both familiar and bewildering.
Couldn't find cards for sale today, not at GS, TRU, or Target.