Interesting, but at $160 the GL-MT600 is nearly twice the price of the OpenWrt One.
Good to know about though! My whole reason for asking for alternatives is I’ve had a great experience with dd-wrt in the past, and I’m sick of ubiquiti, so I’m looking ahead for my next router.
The gateway device should definitely be up at all times, but in the real world, things don’t always go as planned.
If you only use the internet, then maybe having your AP go down when your gateway goes down is fine. For us avid self-hosters, that is unacceptable behavior.