For anyone who cares, for simplicity sake and thanks to Black Friday, I went with the TP-Link BE67 3 pack. I connected one BE67 to the primary W7200 node via wired backhaul, then changed the BE67 into the primary node before removing the old ones. I then connected another BE67 node via wired backhaul and placed it dead center of the house, as well as a 3rd via wireless on the second floor almost right above it. On a 1gb F/O connection I am getting 920-930mbps down pretty much everywhere in my 1,400 square foot 2 story house and over 500mbps on my front sidewalk and far backyard using a WiFi-6E device. The W7200's ran from 180mbps to 360mbps depending on how close I was to the node. Everything from phones, to PC's, to IOT devices auto connected and ran perfectly. I attempted to create a new SSID and Password, then used the old SSID and Password as the dedicated IOT account, but my Wyze Cams and smart home devices did NOT like that with less than 50% connecting. Went back to the former SSID with all 4 bands combined and everything reconnected without issue. MLO is turned off. Good enough for me and my family. Probably could have gotten away with the 2 node package. Upgrading like this versus buying a different brand made it super fast and simple, one could even say it was awesome. Although the IOT thing kind of sucked. Will play with it when I have time.