Also installed 8.1 on my TA-1004
NFC issues are gone, great :)
Android embedded Screen Streaming/ Mirroring to Samsung TV Allshare is also not working, no Devices were found. This works with Huawei P10 Lite (Nougat), Wiko Highway (KitKat), Alcatel (Lollipop).
It is also not working with Nokia 6 with 7.1.1 or 7.1.2 or with the beta 8.0. --- Please fix
I'm running the beta, so far so good, very smooth, liking that transparant notification drawer, and of course the cheesburger emoji... :). I haven't encountered any major issues so far after running it for a day.