ive had no issues with my 6.1 update.
the youtube works like a sum*****, only complaint is that its pretty quiet, ill have to try it with my S9 and see if that makes a difference.
the new task manager works quite well, and the new microsoft office stuffs is awesome.
the threaded sms is awesome too. i actually keep my text messages now.
i like the new notes app alot more than the old one. works really well as a shopping list. you can also leave everything on the list and do a strikethrouh, like you would with a pen and paper list.
the 6.1 update also seems to have solved the problem of the incoming ringer starting out quiet, then playing louder than some hot pants from the 80's.
but yeah, my experiance with the 6.1 update can be described like this:
