I found that I liked things that I didn't think I would: - I like the new scroll bars, though I had to immediately reverse the setting because I couldn't get u

I found that I liked things that I didn't think I would: - I like the new scroll bars, though I had to immediately reverse the setting because I couldn't get used to their behavior (probably right for a track pad, but wrong for a mouse scroll wheel). It is even shocking how useful they can be, e.g. in column views such as file save dialogs I don't think I realized before how much space was wasted by scroll bars. - I also don't mind Launch Pad, although Launch Pad still seems like it tries too hard to shoehorn in an exact implementation from iOS. A big screen with a mouse should yield more flexibility; it would be especially nice to be able to leave spaces between icons and to group them while still showing all icons instead of putting them in a folder like iOS does. - Other random changes to the UI are generally pretty good. Though I think sliders suck (they look too dim and unclickable now), and the decision to make tab segments metallic seems out of place with the Aqua look that remains everywhere else. Similarly, darkening the blue shade of menu selections seems mismatched compared to everything else. Many features are maddeningly useless on dual-display machines. Full Screen inexplicably blanks out an entire display with no apparent way to make use of the other one; it even moves windows that started on the 2nd display over to the first before entering Full Screen mode! Mission Control is obviously aware of multiple screens, but the way they did it still seems kludgey to me. It is frankly as if Apple didn't even bother to try supporting multiple displays well, even though they're perfectly happy to sell you systems that encourage this (expensive) hardware arrangement. Like Xcode, Instruments, iTunes and other new one-window apps, this trend is extremely irritating because it's as if the entire potential of my display is being actively shunned by the software side. Animations are about half-and-half; some are quite nice (like for alert boxes), but most are simply too slow and weren't user-tested properly. Full Screen for instance takes a ridiculously long time, as does switching Spaces, and these delays are unacceptable. There is a general sluggishness to the new OS in areas besides animation. Sometimes applications seem to take longer to open, and windows take longer to open. It is not clear why. I prefer to minimize windows into the application icon, and this is kind of a step backwards on Lion: Apple no longer shows these in Exposé (Mission Control). The only apparent way to get them back is via a new dock menu item "Show All Windows". In other words, that preference is no longer useful. I think the new Mail is brilliantly designed. The inclusion of FaceTime is nice I guess, but I know absolutely no one who uses it (the other instant messengers like Skype are king now, I'm sorry to say). In general, a pretty good upgrade, and absolutely worth thirty bucks.