Yeah, setting up my router with VLANs/Firewall/NAT etc was so damn frustrating with Ubiquiti compared to the Mikrotik router I had before.
While I could just export my config file with Mikrotik and ask ChatGPT to make whatever changes I wanted in seconds ("here's my config, make a vlan 20 with all my iot devices") and get a fully working config back, with Ubiquiti you just get a bunch of inaccurate "click here and there" instructions back instead since the UI changes slightly all the time.
The switchover was still worth it, as the Ubiquity UI is nicer in daily use (and Mikrotik wifi sucks ass, so I had to use other APs). However, every time I want to change something I wish I had an easily ediable config file to edit, and get LLM help with, instead of a confusing UI to click around in.