Unfortunately I think this one falls more onto the bad side than the good for me.
It's actually a really neat gameplay idea that reminds me of old flash games, but it took me way too long to figure out the core gameplay (avoid the cube with your pointer). The help isn't much help, and the whole game is presented in a confusing way. There's a glitch that prevents the required score from displaying the first time at normal difficulty.
I just didn't find the game very fun, even after figuring out how to play. It would take a ridiculously long time to get to the required score, and the harder modes are grossly unfair. There's just no way I'd be willing to keep up for that long.