I jumped into this game believing I would give it two minutes and then come to the conclusion "this is for young children and it's way too easy". And after two minutes I came to it. But that didn't stop me... Somehow this has a strange power over me, I just couldn't stop playing. It was relaxing and pretty, and that was exactly what I needed right then.
When the buy option came up after the demo was over I tried to purchase it but I couldn't. I could bring up the pause menu behind the purchase prompt, but I couldn't interact with either of them and had to force quit.