I love this game!
It's very addictive and simple to understand. The visuals are pretty despite the fact that they are simple. The music is very nice and calming. Also, the implementations are both very nice. So overall this is an amazing game.
The only problem that I have with it is that you're making money a bit too slow, and the prices DOUBLING every single time you buy an object doesn't help. If that was like 1.5x or maybe even less, then it wouldn't be that much of a problem.