I actually really like the launcher, I find it useful. For example, I have my most frequently used applications in the dock bar, but there are a whole load of other apps which I use slightly less frequently. Now, if I added all of these to the dock, then the icons would be minuscule and the dock would be huge.
The fact that I can use the gesture to bring up the launcher and then organise the screens so that I have minimal effort to launch these other applications.
Natural scrolling has become, well, second nature.
I had to revert to the classic view in mail, because the iOS style view just didn't work for me on a laptop, but that's just personal preference.