I just wanted to say I'm not really even using Mission Control, unless swiping with three fingers to switch apps counts. I typically don't do very much multitasking, so maybe that's why.
I decided to try to get used to the new scrolling, because swiping to the left to go to the app to the left doesn't really feel right to me. I also decided that the only reason I liked scrolling up and down better the old way was because I had gotten used to it, and that once I got used to the new way, I would like it more. So far, after only a day of use, I have pretty much gotten used to the new scrolling.
As for launchpad, I have a shortcut to my applications folder on my dock, so I really don't use Launchpad much either. It is helpful when downloading apps from the app store though, because instead of the app going to the dock, it goes to launchpad, and I can see the progress of the download from the Launchpad icon I have in my dock.