Well after a few days on 10 mobile, it's been for the most part functional. Calls, texting, emails, and primary social apps have been working without any problems. There are a few apps that still don't run for me like Truecaller and some other non-essential apps. Also I probably have once or twice a day the phone lock up and reboots, one trigger I've noticed for this is when I sms an emoji through the notifications. Overall, pretty much pleased on function and stability, especially compared to older versions of the OS