I installed Leopard on my work Macbook Pro on Friday. Other than some corporate image wonkiness (there's always something...) it's been an incredibly pleasant experience thus far.
At first, I wasn't a huge fan of the new dock UI. It's growing on me, though. Mostly it's probably because I made it even smaller than it used to be, so the bright light things that show when an application is open isn't so offensive anymore. Or maybe I've just gotten used to it.
Stacks looked like nice eye candy at first, but not so useful. But I've come around. Adding my downloads folder & my applications folder to my dock is a really handy, quick way to access those things. (Of course, I usually default to quicksilver keyboard shortcuts for applications)
Spaces is by far the best virtual desktop implementation I've seen yet on mac. It's still lacking a few things: a keyboard shortcut to move windows to different desktops, proper option+tab app switching behavior, maybe screen edge triggers for moving windows to other desktops. But once I figured out how to have firefox windows on multiple desktops, I was sold. That was always my biggest shortcoming with
virtue/
desktop manager/any other solution I've tried in the past.
The new terminal is wonderful. I spend a lot of my time (at work & at home) inside a terminal session, so having a sane implementation is a godsend. (Although
iTerm has become a really good drop-in replacement lately) Built-in tabs, better/more configuration options, proper keybindings are all great additions. The only thing I've had a hard time adjusting to is the lack of select-to-copy. Between my linux sessions & the old iTerm functionality, that's going to be a hard habit to break.
From a work point-of-view, I'm enjoying filevault not taking a shit every few days. I've had it want to clean up once or twice now, but it did it automatically and didn't take very long. It's about freaking time.
Autofs + kerberos nfs is great. I can access all my work auto shares from terminal without any wacky configuration nightmares. It
just works.
Likewise, the new mobile account option is really nifty. Lots of things are auto-syncing from work when I'm there (or VPN'd in) which makes my life easier.
There's also a lot of small UI tweaks that I really like. An example: the networking pane in system preferences is pretty. Showing a lock next to secured wireless networks in the tray menu. The new finder look. All good things IMO.
Now for my biggest gripe thus far:
The translucent menu bar is really ugly. I really like blue backgrounds (the tiger default background anyone?) and the translucent menu bar turns a pastel blue with this configuration. Bad move, apple. You've been known for that glorious grey menu bar for years. Why change now?
All in all, I'm really happy with my Leopard install. Between Apple & Google's macops team, I've got a really awesome cutting-edge OS on my laptop. And it's pretty. And I like pretty things. :)