Both root comments so far complain about the UI changes - I really don't get it. I've switched between OSX, Win, Linux, and the button issue is trivial (OSX has top left buttons). I couldn't give two shits about whether to yank the mouse to the top right or top left to close a window. Mostly I use alt-space or ctrl-w/q for window control anyway. Foreign languages have slightly different keyboard layouts and it takes about 30 seconds to adjust (motor memory ftw).

What I care about are the fundamentals - hardware (sound, brightness, video driver support, battery life). The availability of quality software and ease of installing/removing it (cleanly) - mostly great.

The same people who learn arcane vi/emacs/cli syntax complain about moving their mouse to the opposite corner - please!

I've been running Ubuntu 9.10 exclusively for a while now, and besides hardware support issues (nvidia driver crashing X), shitty sound (midi, and the kde vs. gnome way of handling sound), and Adobe Flash/Air suckage I haven't had any complaints.

Win7 feels far worse. In fact, just install kubuntu and be done with it. UI-wise: KDE => like Window, Gnome => like OS X - pick your poison.