(unlurk)
I installed this a month ago, and I have to say it has been running very smoothly, I would recommend looking at some of the work arounds for a couple of the bugs, but everything works flawlessly. I have only had 2 lock ups, and I think that was due to an app, not OS.
About Google Now... Honestly it is cool, and works for searching stuff....but.... the whole learning about you seems like it is really slow. Currently All I ever get is drive time to home, and weather. Unless I am doing something wrong.
Welp back to lurking!