As a time management game should be !
Very enjoyable & addictive game. The only downpoint (a small one) is that you cannot see in advance (before you actually start a level) where everything is & how much it costs to build something. On the more difficult levels this sometimes requires playing the level several times. For the rest : very good overview of stock of goods and what is possible to build (turns blue) Also good indication of how much goods you are short to accomplish a task.