Decent at first
The game is fun at first, but mostly because of the sight of the chain reactions. After a number of levels, the game switches to luck based levels, rather than chain reaction based levels. The whole game essentially changes right in the middle.
These "different" levels involve attempting to click on quickly moving and smaller molecules in order to hopefully get the right click. After that the game gives the player even more objects to keep track of, which eventually drove me away.