Personally, I haven't brought myself to start using it yet, because I like having everything visible all in one place. I've thought about making a view for my most highly variable categories (e.g. my going out money, not my fixed monthly bills), but I can mostly accomplish the same thing by just putting those categories at the top.

I could see them being useful if you share your budget with a person who doesn't like budgeting but who should look at the budget more often. Create a focused view for them of the categories they use often and it makes it much simpler for them!

I've made a "my" view where I split out my long list of categories to feel better on my anxious days. I made my fiance a view to help his ADHD brain. I've used the overfunded view to double check for funky things. And I made a wedding view (mostly just because since it was its own category group anyway).

I’ve just been using the overfunded view which has been nice but I need to flex the muscles of this new feature more.