It's quite fun to play, and a worthy procrastination from homework. I do wish that there was a keyboard control option, though. Mouse control worked well enough, but a keyboard option would also be nice as it gets a bit hairy with trackpad. Also, the red and purple gems are a bit hard to tell apart. These niggling details are my only troubles, and in no way got in the way of my enjoyment. The base game-play is really fun, and spotting absurdly large combos is always great. I could totally see this being expanded with more cards with unique effects. In any case, I'll surely play this a lot over the coming days.