I've installed it on a partition on my 2011 mbp and it's just as fast and bug-free (haven't installed any applications yet, it's bare bones OSX) as 10.6.8. And it has pretty stock wallpaper. But that's where it ends. I realized that Apple introduced Lion with the phrase "back to mac" (something like that) because they wanted to make their PC's just as simply and easy (maybe even as profitable) to use as their mobile products, but I didn't think they would take it this far. So they decided that "command spacebar" was not fast enough at launching an application and that "command shift a" was too complicated so they made launch pad. It is redundant. It is useless. And above all it is a gimmick for the potential windows switcher. And then there's mission control. It is the deformed and mentally challenged child of spaces and expose. It is counter-productive from the applications and ideas that spaces and expose provided. A simple "option arrowkey" or "option #" would take me to the whichever desktop I needed to be on. But now we have to "control uparrow" then use the trackpad/mouse to click on a roll of desktops in order to enter another space. I initially switched to OSX because of spaces, it enticed me with an uncluttered and open user interface to use my applications. Furthermore, I could assign applications to a certain space and have them open uncluttered by another application. It seems like every thing I do on Lion comes with it's own chic animation. Lion is a whole lot of bells and whistles that make the bike less enjoyable to ride. But nice to look at. Not like Steve Jobs was going to read this. I had to post it somewhere. Any feedback? Questions? Comments? Criticisms?