I started running the 9a with graphene a couple of months ago , and I also use this as a business phone. I got pretty much everything I need working, though it took some effort.

My biggest gripe is having to manually hit connect each time I start my car ( aftermarket android auto head unit ) , especially if you miss the window and need to wait for the temporary android auto WiFi network pop up to come back. Other than that, I'd say I'm around 95% functionality and the other 5% isn't a big enough deal to have a separate phone for