What are your takes on the Zen browser?

I'm currently using Librewolf primarily, as it has good out of the box privacy settings. I really just added Ublock Origin on top of it. I've recently seen another uptick in Zen recommendations though, and I must admit that I like the UI. I'm sure it has worse defaults than Librewolf, so what are the things I should probably apply and what extensions should I download for some extra privacy?

And is the browser even any good beyond the initial impression?