Very relaxing, very enjoyable. The zen vibe is palpable. Aided by a cool soundtrack, chill atmosphere, and beautiful landscape even at lower settings.
For some reason I had trouble installing it, but once I got it working it was totally worth it.
It's largely free roaming exploration and it's quite easy to understand what to do due to it's simplicity.
Due to how enraptured I was into the game, it was actually a little shorter than I anticipated. It could really benefit from an additional level or two under a different kind of landscape, like perhaps a snowy tundra, a space level, or a man made system of some kind.
Still if you need to relax, but you also want to have fun while doing it, then I highly recommend this game.