The macro pad works like a charm, and the dual layer knob works as intended. 2 gripes I had with this item, though:
1. As seen on my pics and the listing pics, the actual macro pad is a little different. The one on the listing has the center knob with one round dimple for you to normally rest your finger on so that it's easier to rotate. The actual product, has a different knob design... no dimple but it has line grooves, which aren't as good as the dimple. So sometimes when I rotate the knob, it slips if I have oily or moist fingertips. Another difference is the keycaps being used. It claims to use XDA Profile keycaps but these clearly look like a different height... probably either Cherry or MDA Profile.
2. The VIA JSON file they have does not allow to change RGB backlight and underglow through the software. You can't refine your RGB lighting since it's reliant on cycling through the pre-set lighting settings using a key you have to assign... so no way for you to assign a static light of specific color for the keys while having a different color and mode for the underglow.
Overall, still a good product... but it needs improvement and definitely needs to either be honest with the listing, or coordination between their marketing and manufacturing teams.