So far from a upgrade install i have noticed.
Faster boot and much faster shut down.
Opening apps is faster especially Safari and Mail.
Finder is much smoother at scrolling large folders and seems much faster.
World of Warcraft runs smoother fps.
All of my major apps work,
- Photoshop CS3
- Illustrator CS3 (had a wee crash when opening a document once)
- Indesign CS3
- Espresso
- CSSEdit
- Cyberduck
- MAMP
- Tablet Draw
- Messanger 7
Animations and scrolling are smoother.
I love the minimise a application to the icon and the updated exposé.
The increased focus on the dock is logical, including the black menus they make more sense now that you can tell there not related to the desktop or another application.
I don't like changing disk reporting to base 10 it should remain base 2.
The UI is just a cleaned up leopard, i like that nothing wrong with it i can read the titles of the title bar and see the buttons clearly without eye strain that i got when i used vista glass.
I dont like that the candy buttons and scroll bars are still there, there long past needing a simpler more clean looking update.