Yea, I like many other people where thrown off a bit by the Metro interface until I figured out how to use it. Turns out it is vastly superior to the start button. You can find things allot faster, get information at a glance, switch between applications really fast, and if you want to find a file, folder, setting, document, email, app you name it all you have to do is just type the name click on the result. Works especially well for finding a particular program. Just type the name and it filters out everything else instantly.
I find that now that I am use to it I am more productive. Is it perfect, no. They need to work on a few things but it works well and makes using my PC faster.