What was wrong with it?
Well, it had the same exact wifi issue as described in this thread (which is why I posted here). I cannot bear turning the wifi off and on every after the device wakes from sleep. That is not something I'm comfortable doing with a phone. It'a very lame doing that. I'm very disappointed Xiaomi cannot solve such a small but very annoying issue.
I note that from your other thread that your VPN issue was fixed after you deleted and re installed the app.
I'm finding battery life the same if not a bit better, was expecting it to be worse as it usually is when updates come. How did you check your wifi issue, router logs?
Nope and I've switched to using MacroDroid now as Hotspot mode isn't supported in Automagic but works fine in MacroDroid (different reason). So both are good for this.