As other said already, it's very cool, uses quite some CPU (fans go brrrr), and it sometimes feel a bit sad to get the pattern changed in your stead.
I wanted to add that I'm in awe in the very subtle way the colors are chosen, which has an almost Impressionist quality in some cases. Little variations of hue that are fairly neutral, but where you can see the rich color variations when focusing on the details. Sometimes there seems to be little patches of light in an abstract pattern, with a physical quality. The cell size can also create a perspective effect, particularly striking with a wave pattern. It's so evocative!
I wanted to add that I'm in awe in the very subtle way the colors are chosen, which has an almost Impressionist quality in some cases. Little variations of hue that are fairly neutral, but where you can see the rich color variations when focusing on the details. Sometimes there seems to be little patches of light in an abstract pattern, with a physical quality. The cell size can also create a perspective effect, particularly striking with a wave pattern. It's so evocative!