The mechanics of the game are solid and I enjoyed playing, but I did find it super difficult. I was expecting it to be the more traditional mechanic of jumping over another marble captures it. Probably I'm just not clever enough to get the tactics required.
I have to say it feels really polished, definitely a level of professionalism to everything about it. Even nice little touches like the background cubes reacting to your cursor. I appreciated that I could try all the dofferent levels whenever I wanted