I have gone through four ASUS routers now and wouldn't give you a nickel for all of them. They toot all kinds of features and the UI is good but they crapped out frequently over the last 4-5 years. Their mesh is garbage, but then I believe all mesh is garbage so far. I have seen about 5-6 mesh router systems and they cause more problems than just having a decent single router.
I had an AC68u router that was shortchanged on NVRAM and just forgot connections. After using several third party firmware images I discovered it just didn't have enough NVRAM to function with more than about 48 devices. Turns out ASUS put out a newer model with 128kB of NVRAM and left the original A model owners crashing until garbaged.
Then I progressively bought 3 AX92u routers in order to prove where my problems were. Things just got worse as every one of the WiFi6 routers would just forget that devices were connected to the Internet. No signal loss, or connection loss. It was just as if certain devices were disabled between WiFi and WAN data connection. No problems could ever be detected and only a power cycle would fix it. Reset would not fix the problems. Those routers went through about 10 firmware updates each, and it always happened at random. Only the user could ever tell something was wrong as the routers never indicated anything or gave any clues. The next thing ASUS did was lowered the 5GHz signal level until my wife's iPad could not communicate across a 20 foot wide room, when in mesh mode. My Roku stick would not communicate on 5GHz about 6 feet away in direct view of the antennae. An old NetGear router proved that problem was the ASUS's when the Roku stick worked perfectly from the other end of my 3800 s.f. home on 5GHz.
With the wired mesh, I discovered a lot of devices just do not like to switch connections, using the same band and channels. Again. Mesh doesn't work well for most mobile device software that changes locations. They must be rebooted to fix the connection hiccough that happens when the connected router rejects it in order to force the modem to connect to another mesh node. Other methods repeating WiFi signals bog down your WiFi speeds and crowd the air waves.
Oh yeah, all the ASUS routers overheated when loaded with a lot of connections and data. A small surplus muffin fan underneath them helped ever one from crashing in summer heat despite central A/C in my home. Those boxes are just too small to keep that much CPU power cool enough. Mounting them vertical halped a lot also. The ventilation of the cases were designed by idiots, using board positioning and that block the natural convection and vents.
Now I haved moved, sold all my ASUS routers and got a fibre-optics unit. What a difference! I would never touch another ASUS router again. Strangely enough, I was an ASUS distributor years ago but the mark-up was so ridiculous with about $20 on a fully equipped desktop that required assembling and setup with an O/S..