I've gone from having those problems frequently, to them being resolved.
My only gripe so far is that the brightness slider in the notification panel comes and goes, whereas it used to always be gone because I use Lux Dash to manage the brightness.
If anyone knows any non-root way to get rid of that, and the S finder / quick connect crap from the notifications, I'll be rather grateful
Mishkin: Yeah you are right, that camera to gallery switch has always been horrible.
I have noticed a few other minor things - the wireless charging toast message now warns the S-Pen may not function correctly whilst charging now. Never used to.
Someone else complained there was no clock in the notification bar I think? There is and always has been, so not sure if I read his feedback right.
I'm not using the stock launcher (using Google Launcher) so won't notice any other homescreen changes if any.
I understand the S6's got the option to remove S Finder and Quick Connect from the Notification shade on 5.1.1, but that doesn't seem to have been done for the Note (without root). If anyone realises you can (and how), please say.
The little things make the biggest difference.