Atmosphere very calm and relaxing, the levels increase in difficulty as and progressing but to a certain extent. I have not been stuck for more than 5 minutes on the most complicated levels.
The decorations are refined and the colors are not too flashy.
If you have had a bad day and want to decompress, I think this game is a good thing for you, spending 20/30 minutes.
Peace in your heart!
Enjoy your life and take your time :)