Why just not to ask people do they want new design at all? Especially so uncomfortable for eyes, too bright and annoying. From first sight yes, it looks bright and takes attention, but it's all about marketing and PR. Do they ever think that people buy their products not because they are have bright icons, but because of quality, to have ability to work with more pleasure and longer. Now, new Yosemite design makes it impossible to work longer, it's really bad for eyes, not contrast, some texts are hard to read, for example backgrounds have to be mostly consistent color to be able to read text on it easily, but with their new translucency background can be almost the same color as text on it, how it's expected to be read. And there are lot of other really annoying and uncomfortable design ideas, their designers trying to follow global flat trend, just spoiled whole Apple previous really good looking style. Why nowadays such a trend like flat design, it's all about usability, to remove all extra stuff what distracts from main interface items, but what Apple done, absolutely opposite, trying to pretend they follow flat design they made it unusable at all.
I'm on Mavericks, and not going to install Yosemite or ever new OS with their new design, and wouldn't recommend anybody installing Yosemite.
