Not really a good game. But there are still positive points.
Yeah, there's a lot of spellbinding to do. Collecting, backtracking, replaying... It's very exhausting. There is also this one thing about the game. The cards adds depth to character customization. You can also buy them with beans and equip them to your character. It's not really eye candy and the voices doesn't sound like Daniel, Emma or Rupert at all. Though the special effects are emphasized and the background music is very soft (even in max in-game volume). Rules are very simple here. Use your head and your thumb. Do magic, collect shields to unlock a level. Strive for Gold during Triwizard Tasks and defeat creatures (and Voldemort) along the way.
It could have used the scenes from the movie (which would've been great) and they should've tried to improve graphics. It also serves as a fun multiplayer (only 3, of course). And it doesn't even let you see the things that Rowling wanted to depict in the book. Teenhood anxiety to be specific.
In general, it is OK though you might want to spend hard-earned money on another game. But if you really insist, it is still a decent game.