Posted this in another forum (llllllll.co), just sharing:

I’ve been using it for about a week. I am approaching right now it as a tool, something like a using a mantra or metronome or prayer beads, ignoring the pads and any kind of intellectual analysis. I’ll hold off judgement until I experience or don’t experience shapes and colors and emotions in the noise. Then I’ll look at the other exercises.

So far I am able to make myself sense layers and shapes and patterns in the noise, but it takes a good amount of concentration and is difficult to sustain.

It’s been an interesting experience I definitely want to continue. As with meditation it makes all the difference to be able to quiet one’s mind, you’re not going to get far without that.