[Havoc]

>It's star topology

I personally see that as a feature. When I was researching what route to go (wifi/zigbee/zwave) I encountered enough horror story posts about mesh networks to know that it's not for me. Small network absolutely, especially for battery powered devices, but meshes seem to hit critical mass where it becomes unstable & then people end up doing stupid shit like having to physically uninstall wall light switches to temporarily move them closer to hub to re-pair them

Adding more 2.4ghz AP capacity is comparatively trivial. Hell even raspberry pis can act as APs.

>it will pull down both performance

Anything where I care about performance is on the 5 and 6 ghz band. 2.4ghz is too noisy in cities for general use, but is entirely adequate for IoT sending a couple bytes every now and then.

>[WPA] security

That one is indeed a problem. At some point I'll stick them on a separate AP device with a firewall between that and rest of network, but can't say its a priority