Turning off "Frequent Locations" in the iOS privacy settings has consistently crashed the Settings app on both my iPad and iPhone, even after wiping both devices and reinstalling iOS 8 from scratch. Fortunately, only the app crashes, and the "off" setting appears to stick despite the crash.
Safari does seem to have multiple issues. Scrolling is slow on the iPad, it must often redraw images that you scroll back to, and when you click a link that opens a new window, the parent window will often be empty but will NOT automatically redraw.
I also noticed that the address bar minimizes when scrolling down a page, similar to the behavior on the iPhone. Not a big deal, but it's another iPhone behavior that I'm not sure is necessary (or helpful) on the iPad.
And just now, I've encountered some oddities with the cursor position while typing in the text entry box for this post.
iOS 7.1.2 was working very, very well, so these bugs sure do stand out, but they're far from significant. I suspect that Apple will start squashing them within the next couple of weeks.
JKG