ASUS - ROG Rapture GT6

If you want to reuse your RT-AC86U, you would need Asus to make it easier. I have the XT8 and it was bad during the 1st year but after a certain firmware update, it just worked fine. (or maybe it was just our devices having more Wifi 6 and less Wifi 5). I now have the Asus Rog GT6 and they are also good. I have no experience on other brands but any tri-band router should be good. Just check the reviews for the specific model you are looking at.

I did not replace the XT8 due to performance issues. I just saw the GT6 on sale and thought they were going to be phased out since Wifi 6e and Wifi 7 were coming out. With the price of Wifi 7 routers then, I thought I was saving money. So I use the GT6 as main router and the other GT6 and XT8s as nodes. They do work well together. Sometimes more devices connect to the XT8 node. I have the XT8 connected to my desktop and NAS so I have a direct LAN connection to the NAS even if the backhaul is wireless.

I have the Asus Rog Rapture GT6 mesh wifi, works well with my 3 gig service

I used to like the nest but never got the speeds promised until I bought Asus rog router and mesh link wow I’m getting the whole gig almost every where in the house

EERO is popular because of cost - that is it. I tested them out and they are HORRIBLE in a highly dense area (ie Lots of neighbors with Wifi). UniFi is the best mesh- its what businesses use, but more complex to setup and maintain; not friendly for the consumer market. Depends on your requirements Out of the others I have tested: Orbi - easy to get started; great mesh; CON: Subscription for parental or added security; Not the best speeds (but generally good). Netgear - Same as orbi ASUS ZEN - Fantastic speed; Unbelievable configurability/features; No subscriptions for parental or added security; CON: Milage varies because of quality. Asus notoriously has issues with their firmware and new products. ASUS ROG - Same as ZEN; has more Gimmicks I ended up with the ASUS ZenWiFi BT10 - replaced the Orby Mesh. Very happy . I needed parental and added security; Needed VPN; Needed 10gig / 2.5gig WAN

Upgraded our RT-AC68U router to a Wifi 6 capable RT-AX86U Pro.  Ran an ethernet cable for wired backhaul, put the AC68U as a mesh node.  The Asus mesh system works really well. 

I've been using AiMesh since the beginning, and it was rocky at first, but now I'm currently quite happy with it. One solid main router and two APs outside. What unifi did you get to replace your setup and do you think it was worth the cost?

Older ASUS AiMesh user here, and similar story. Portal plays shockingly well, and my PS5 isn't even hardwired.

Most mesh systems will support as many nodes as you wish. But not all nodes are created equal. You’ll obviously need fewer nodes with a high powered node vs a cheap node with little range. I would HIGHLY suggest wired backhaul if possible, no matter the hw you ultimately decide upon. Ubiquity has a good solution for your use case at attractive price points. Asus’ AIMesh setup also works well, allowing you to easily tailor the hw for your home’s needs

Asus AiMesh can be configured without an app and uses local credentials for management.

100%. Just make sure you reboot the doorbell once your mesh is set up. It will then hop on to the WiFi node with the strongest signal. You should be able to configure your mesh so that the doorbell remains connected to that node, probably by assigning its MAC address to that node. I have two regular ASUS routers that have their own proprietary mesh called AiMesh. I’ve connected them to each other via an Ethernet cable that runs up through the attic (single story home). It also supports a dedicated WiFi connection between nodes, but hard wired is the way to go if at all possible.

I went from DD-WRT for years to ASUS AiMesh and have been on Unifi equipment for a good four years now. I never have any issues with roaming (3600+ home) and I can fine tune whenever necessary (rare). I love the Unifi and don't plan on moving away any time soon. If you want peace of mind, I definitely also recommend Unifi.

Avoid tp-link and any other CCP networking equipment. Don't intentionally put stuff with backdoors in them just to save a few bucks. Unifi is great but it's expensive and you really should use it wired. If you're just looking for plug and play mesh Asus has good offerings. Their AI mesh system works well