
eero
Pro 6 Series
Easy, reliable, smart home ready; but paid features.

Running these analyses costs money. Buy through my links to help keep lights on! I may get a small commission.
Go unifi my guy. Used to use the deco m9 plus as well. Literally don't have to reset my router. Stable connection. Don't forget to add a rack and make everything pretty.
I've got a Deco X10 and two M9 Plus covering three floors of a house. Works great for me. They're decently powered devices, each running about 8-10 WiFi clients including two TVs streaming simultaneously.
Yes. More control is better. With Unifi you can actually see what's going on with your network. VLAN partitions are amazing. With Unifi I find I move between APs way better. With TP Link I found I was often stuck to an worse AP. I'd drop my wifi and reconnect regularily. I don't do that anymore.
Used Deco M9 would be the ideal solution as they have a dedicated wireless backhaul as well as two normal wifi channels giving you a WIFI 5 with a separate backhaul. Being a few years older, they are also cheap on the used market for what they can do.
I have deco m9 plus and it has a dedicated 5 ghz for thr backhaul and therefore its called a tri band router. Even I am looking to add a couple more to the network as I am planning to shift one to another site. But I dont know which new ones have a dedicated back haul radio.
Another vote for the deco. I have 2 M9+. Working perfect. Fist bought 3, but 2 was more then enough.

eero
Pro 6 Series
Easy, reliable, smart home ready; but paid features.

TP-Link
Deco XE75 Pro
Great coverage, easy; but unreliable Ethernet, poor app.

eero
eero Max 7
Incredibly fast, reliable; but very expensive, limited control.

eero
eero Pro 7
Fast, reliable; but paid features, needs internet to function.

eero
eero 7
Easy, reliable coverage; but no 6GHz, paid features.