Updated from SW6 with only two minor issues that were easy to fix.
- AT&T Sim with sim card lock (pin) enabled was stuck on emergency calls only. Fixed by going to Settings > Security > Advanced > SIM card lock > disable lock and restarted phone. Back to normal and was able to re-enable the sim card lock.
- KISS (third party home app) would still open with the home button, but the other two buttons would open Quickstep. Went to Settings > Apps > Default apps > Home app, it was blank so I picked KISS. Had to restart phone for it properly apply.