I don't understand how people are praising the design so much. This is the worst design I have seen Apple make. I loved the iOS 7 redesign, but this doesn't look as good as it. The redesign is the only thing keeping me from updating. I normally never say that, but this is the first case where I have seen a new design that is worse than the old one. I just feel zero incentive to update from Mavericks, which I have themed a bit. I'm still waiting for it to "grow on me." The transparency looks amateur on a desktop OS, and I can't help but feel a Vista vibe coming from it. Just looking at the Yosemite screenshots on here makes me feel sick: the ugly mesh of bright colors. I'll probably enable the darker colors option just like I did in iOS 8.