It's far less customizable, and can be maddening sometimes if it doesn't Just Work(tm) - debugging it can be a giant pain. You will also be paying the Ubiquiti tax.
I simply redesigned my overly complex home network to be much more boring, and am okay with that. I don't want to tinker with my home IT stuff much these days - I want it to just work, and changes to be easy.
I've found Unifi Network and Unifi Protect to have come a long way in the past 3-4 years. They still drop hardware duds and software bugs here and there, but overall it's been a rather decent experience for the most part. I understand all the core level technology and configuration bits, but I simply do not have the desire to ssh into switches or whatever to configure a new port these days. Then open source NVR story is also just horrible even today.
It's also great for remote installs for other non-technical people/orgs I help out with. One dashboard I can just click on and go take a look to figure out whatever problem they may be having. And a new setup takes hours vs. days.