Installed my OTA this morning and cleared the system cache. Totally stock, unrooted, 16 gig, lots of free space. Running Nova Prime, so it still looks the same but it is SLOOOW! Takes a long time to load apps, apps crash, lag and stutter, Gmail and calendar widgets are slow to repopulate and I am generally unimpressed. I was much happier with KK 4.4.4. Plus I miss my Dashclock lockscreen widget!
Interesting Nova quirk: I have persistent search bar turned off, but when I hit the "recent" button (which takes forever to load) I get a white search bar above the cards, which does not appear on any of the home screens. When I go back to a home screen (which again takes forever) the search bar drops down off the screen thru the home screen. Can't figure out how to get rid of this.
Don't really want to do a factory reset, as I have Nova set up exactly as I want it and although I've backed it up thru the app, I'm not sure if it will restore or if I'll have to rebuild it. Do any of you know how to restore?