Well I traded it in yesterday because it was within two days and it rebooted for the techs multiple times. Well it's been a day and not a problem so far.
This seems to be different software because the z1s I had before was able to have multiple accounts on the Gmail app, and this one is unable. But no reboot or other problems! So I'm happy!
Just got another phone.
And used the other email app fort work email.