Re: Never again
Note 3 here. First android phone I've had. Before that webos and before that (2008), blackberry.
I have a note 4 too but see nothing in it that makes me want to switch. Mainly it's a backup to my two note 3s ( my daily driver is android 4.4 and my backup(also used as a burner phone for travel) is 5.0. Much prefer 4.x). Haven't seen any other phones since that make me want to upgrade.
Happy with the new att unlimited plan(so far only 2gb of usage past month), cut my bill from 150 to 99/mo (company pays regardless ) .
More importantly I have not turned on wifi since March. Having wifi on is dangerous, allows the carrier to upgrade me to android 5 which I do not want. Before this i turned wifi on when I needed it then turned off again. Though sometimes I would forget. Managed to keep android 5 away from my phone for maybe close to 2 years now. Had a few close calls in that time.
I'd happily pay a subscription fee for actual android security updates to 4.4x though. Google was still putting them out there not too long ago (relative to the age of android 4 and 5 builds available to note 3 on ATT anyway). I am very careful with what i use my phones for so i feel pretty safe security wise. No social media, no banking, no mobile purchases outside of the very occasional google app store buy using protected virtual crefit cards.
One time I tried to root my backup note 3 wanting to flash android 4.4 on it (i had the file to flash with), but it appears Knox stopped me. Came close to bricking it I think. Haven't tried again yet.
About to go on a 3 week vacation. Put in a 256gb SD card in my backup note 3, works great, have another 128gig in my regular note 3 too. MHL to hdmi works well too.