You may not have found any issues, but I have.
I tried doing a factory reset. I tried adding a scheduled reboot every night (which seemed to make it worse). Mine lasts for 2-3 days, but then wifi will crap out. Wired connections still work, but nothing over 2.4 ghz or 5 ghz.
Sometimes the wan will crap out, requiring a reboot.
Other times, all interfaces will drop except the wan. So I go through the diagnostics via the LCD screen and it says everything is happily humming along, no issues... But I can't get an address over DHCP, I can't enter in a static address and ping the router - nothing, until a reboot.
It's very frustrating how unreliable this thing is.