The style is charming and works well with the mechanic of allocation! This is the type of game that would benefit well from a generative system for level-making in the style of candy-crush because once you've bested a level there is not much incentive to return from the puzzle.
The fact the game is relatively big with a lot levels is good because you get to really play around with all the scenarios and the way allocation looks and is taught in game was well structured! Good one!