Contrast with:
(1) eero has no web UI (ONLY mobile phone!) and almost zero network configurability. You can't set a hostname for instance for DHCP. You can have exactly one main and one guest network. You don't get to configure anything about it though. Etc.
(3) I bought a Linksys replacement for my Eeros to get 6E -- I returned it to the store due to how horrifyingly bad the Web UI was and how bad the "app" was too. AND it also had flaws like inability to have reservation IPs outside the DHCP pool range.
Apple is actually the opposite of Ubiquiti -- they don't want you to be able to configure anything or have any visibility into anything. It either 'just works' or just silently fails or fails with "An error occurred."
I use both mikrotik and ubiquiti at home. The mikrotik is necessary for a few things the ubiquiti can't do, but mostly it's a wash.
Incidentally mikrotik tends to be behind ubiquiti for rolling out new wifi stuff