You probably did
It truly sucks for waving your arm around, but then again, so does everything else.
But on a PC with a very sensitive large track ball it is great.
I did not like the window grouping either, for a bit, but as drook pointed out, it's been training me for it's setup, rather than me forcing it to do the old way.
I like alt-tab to move between windows, and I like it's multi-level app grouping in the way it does it. Or I tap click the icon, and all the windows for that app are revealed, and I choose with the trackball quickly.
Fling left, choose large icon easily, click, fling right toward the window I want, click.
I'd hate it on a mouse, but I love it on the trackball.
