Definitely a complex, unforgiving game that turns many people away, including myself. The static images and paragraphs of text do not justify the effort needed to grasp the game, in my opinion - unless meeting the challenge is enough of a reward itself for you
Wouldnt recommend the game either, not only is it grindy, it has an unappealing UI and a bland storyline. Might get better in the future, but there are other better games out there in the same genre to spend your time on, such as koikatsu.
It's a decent card game, though the animations tend to get repetitive after awhile. It'll take awhile learning how the game works if this is your first card game.