Has a pretty charming art style and soundtrack.
The gameplay is an acquired taste though.
Rather than retaining cards from previous encounters, once a card gets used, it's removed from your deck and you'll have to acquire a new copy.
This adds a layer of strategy, but can make things frustrating if luck isn't on your side.
The thing which irked me the most is that card and enemy descriptions were rather cryptic and you could often get yourself screwed if you didn't know beforehand. Took me a few runs before I figured stuff out properly.