Just started, and won the first game. I'm *incredibly* impressed with the presentation. The graphics and sound are top-notch, the user interface is intuitive, and the gameplay is perfect. I've been wanting a sequel to the Game Boy Color Pokemon TCG for years, but if the online in this has no problems, this would be even better, as unlike a console/handheld game, Nintendo will properly support this, and you can actually get in-game cards by buying them in real life.
Speaking of which, I haven't bought any Pokemon cards since the original Base set (which I completed), but when I can build decks and play against other people online in this, being able to transfer my real life cards into the game would totally get me to go out and buy some.
I have a few questions regarding the game itself though, if some kind souls could answer them.
1) Is all progress saved? So if I stop playing, and resume playing tomorrow, all the tokens I've earned, people I've beat, new cards I won, etc, will be there? If so, that turns it from a time-waster to a full-blown game in my eyes.
2) If the game does save progress, when does it save? I'm hesitant to stop playing, for fear that I quit at the wrong time and lose a bunch of stuff.
3) Unlocking new cards replaces old ones, right? But are all the cards I've ever owned recorded, so that when deck-building is implemented, I can choose from cards I used to have in my deck?