Rookie From an OS perspective it looks good from the information you've given. My only real concern would be the login attempts but the phone itself is most likely OK.
If I were you, I would enable auto reboot and set it to 24 hours. This is good in case you lose your phone so that the adversary would not be able to get any real information. Also, rebooting every now and then is good since it takes advantage of verified boot as it will revert any malicious changes to the OS.