I haven't seen anything adverse out of this firmware yet but then again the router is a node so I don't really interact with it anymore. It primarily handles appliances at the other end of the house and my robot vacuums when they go down there and I haven't received any connectivity warnings...
I've been noticing that my wifi 7 devices are showing up as hard wired in the client list.
Edit: Only 2.4ghz shows up as wireless everything else shows as hard wired even though its on wifi.
So I was thinking about how its been a while since I've tried dual wan on this router and decided to try it again today. Much to my surprise it switched over from the primary (xfinity) to the secondary (AT&T) and when I restored the primary it fell back like it was supposed to. Then I rebooted...