Okay, so I've had it installed for a day now. Things I've noticed:
1) It doesn't like Meterberry. Scheduled reset now has to be confirmed, despite having all permissions set to "allow."
2) Once or twice, I've had to refresh a page on the browser, as I would be unable to click on any link. The link would highlight, but nothing happened when I would click on it.
3) Overall, gained about 10 meg of memory, which is always nice.
4) To echo what a lot of people have said, overall much snappier. Opera mini flies, in particular.
5) Haven't experienced anything in the way of random reboots (but I also don't holster it).