ROG Rapture GT6

I have an Asus GT6 Triband, worked well out of the box. Now after a few years, I decided to reset my routers to see if I could make it better as I was having trouble with my ISP speed. It turns out, I made it worse. Now, I may have to put moca adapters. Or add ethernet cables to where I need them to be. I now have only one single router working, and it seems better that way for now. I also used to have the Asus XT8s but they were a pain during the 1st year. But got better after the 1st. Now I use them as Nodes and have been good at least. My vote goes to either using ethernet cables or sticking to Moca.

I have 3 Asus GT-6 routers in mesh formation. MOCA coax backhaul between them and they work great. I have about the same number of devices and priorities.

Same. my original Orbi from precovid was garbage performance originally, but after about 6-8 months of continual firmware upgrade was WONDERFUL and blindly fast 880 on a 1GB , symmetric up/down . Rock solid unflappable. But, they stopped updating any firmware and my security software was screaming at me to patch holes. So I researched and almost no one can deal with the new Netgear stuff you and others mention here. So, I went with a pair of Asus ROG GT6's... Stable but otherwise disappointing performance. fantastic tweaking software, but despite this, just 'meh' overall. highly asymmetric performance: fast-ish – still only slightly faster than HALF of what the 5 year old Netgear got on the download. And it's horrible on the upload. So seriously disappointed in Asus. Everyone seems to think Ubiquiti is the best (within reason) and I'm going to sell my Asus Stuff and try that too. Thanks for your info.

Asus GT6. I installed this a year ago and didn’t find any issues. Mine is 400 sq meters

Disagree. We had Google mesh years ago. A newer, good triband system with dedicated wireless backhaul will help. Even WiFi 6 ASU rog has a good system. Also recommend the new Eero WiFi max 7 mesh system. it doubles our mesh speeds in a huge home.

Really liked my Asus rog WiFi mesh system. Just upgraded my home internet and the Eero 7 max wifi router mesh system is pretty good too, easy setup.

I hated the WiFi 6 Orbi system I bought. It was lacking so many fairly basic features, such as QoS, firmware updates breaking basic functionality, and a very lackluster app-focused experience.  I replaced it with an ASUS WiFi 7 system comprised of a RoG router with two Zen nodes and it’s been a lot more solid with far more configuration options than I’ve ever seen on a residential router.  Maybe the Orbi WiFi 7 line has solved their earlier issues, but I’ll never buy one again based on my prior experience. 

Not troubleshooting, but there’s a lot of configuration options that might require playing with things if you’re not a pro. Do I want MIMO? Should I configure an IoT network? There’s a lot of things it suggests to do but doesn’t really hold your hand in explaining why you should set them up.  In my case, I’ve done a lot of testing to try to reduce latency to portable gaming devices, but it can still be kind of opaque what’s going on. But generally, the basics work find out of the box. 

my asus tri-band does really well. i get hardwired speeds on 5G using the dedicated 6G backhaul but the 6G band does not penetrate well, so it's important to not put too much distance or material between the main router and the mesh units