Very relaxing, makes you feel quite chilled out when you finally put it down! The games aren't difficult, not by any stretch, but the game isn't meant as a full-on mental challenge. It simply switches your brain off from thinking about work/problems/worries, and makes you concentrate on something else. There are 9 intensity levels, so if things do get too easy, you can crank it up a notch! It's done me the world of good!