Switching the gray face to black was the greatest idea so far. Thanks to this, I maintain decent times even being sick, having headache, using an unfamiliar lube for the first time, and obviously the new color scheme. Imagine what's gonna happen when I get used to them.
The only thing that drew my attention is that the black caps are matte, while the entire puzzle is glossy. Not that it caused me any inconvenience, but it's rather kinda strange.
Definitely do recommend.
If anyone doubts that the black caps could draw attention and affect recognition times, think of the black (and white) as non-color or un-color. This way you'll focus on the colored pieces while doing F2L and S2L.