No, I love launchpad and mission control. I think it just makes everything so much easier. I think launchpad is a huge timesaver especially with the new gestures in Lion. Its much easier than searching through the apps folder to open a program, and I use it every day.
For mission control, I didn't like the way expose in SL was particular to a certain space because I would often have to cycle through my spaces to figure out where a program was. With mission control all the apps are right there and I can choose which one I need no matter which space it's in.
I know that a lot of people are complaining about the new features, but I haven't yet found one that I didn't like or had to turn off. The new scrolling makes a lot of sense and has because natural to me after only a few days of using it. Overall Lion has been a great upgrade for me.