Fun game but it's kinda too easy for me. I just buy a bunch of food stands at the first side while putting the castle as my first attraction in the third spot. I put one robot then after that I put three bathrooms at the second side. I get the carousel in the fourth spot then I put three food stands at the remaining spaces in the second side then after that I just put whatever.
I kept doing that strategy and kept beating the levels pretty easy. I'm not saying that the game is bad just because it's easy (in fact I really enjoyed it) but maybe a little bit more of variety on the challenge would be good. Overall though I really enjoyed it as seeing my map being filled with all these attractions and the sound of getting money is really satisfying. It's simple but really enjoyable.
PS just in case some of you don't know, you can see the meaning of the faces if you pause the game.