The DZ101s are ok. I find them a little questionable in the rain. Not scary, just keeps you honest. They scrub when pushed in corners, then speak when they are about to let go. They are great for everyday, but I think the S-drives are a little better all around. Like those above, I want to try the new BFGs.
FWIW, my biggest gripe about Kumhos are how loud they get as they age.