I regret the day I got my C2600. Any sort of high usage via 2,4GHz WiFi will result in packet loss, connection loss requiring a WiFi restart every 10m to 1 day. Time between is completely random, more usage = faster time to failure. If you mainly stick to 5GHz and only very sparse use 2,4GHz, you might get several days of uptime before a spontaneous crash and reset. If you stick with wired only, you're golden.
Restarting the device seems to work less effectively than power cycling, why or how I don't know. It's like whatever hardware is running the WiFi stays initialized in a bad state even after resetting/rebooting.
I've tried every release of LEDE to OpenWRT from 2017 to now, including religious testing of ath10k-ct firmware. Nothing worked 100%.
As soon as OpenWRT support a good 802.11ax AP without any apparent issues, I'm selling a kidney and migrating ASAP. The amount of grief I've experienced due to random WiFi issues at weird hours of the days is frying my sanity.