Honestly, YouTube Premium is the only streaming service I find value in day-after-day. YouTube creators put out so much quality content across such a wide array of subjects and interests. I find myself watching YouTube on my Apple TV more than Netflix, Disney+, Apple TV+, Prime, and HBO Max combined.
And as a bonus, I hear content creators get more revenue from YouTube Premium subs vs. just the ads from everyone else!
If I had to be stuck with just YouTube Premium as a ss (streaming service), I wouldn't mind. However, also having 1 of any of those other ss really does help round out the roster. One gripe against YT is they create their material to conform to YouTube's restrictions and algorithms. That has lead some content to go exclusively on other ss like Nebula, or "being gimped". Otherwise, I really dig just being able to fire up a new season of a TV show, ad-free, and on-demand (which you can do on YouTube as well, but in that case, you pay a la carte to purchase TV shows, or purchase/rent movies). Or, TV series from 5 to 20 years ago. I'm still relatively new to many of them (having used them for 3 to 12 months at most), so I still have a lot of content to go through. When that gets exhausted, we'll see which one we'd like to rotate to (if at all, barring if YouTube alone will be sufficient).
Last but not least, I was on YouTube Premium about a year ago, but I could
swear that they doubled the commercials around that time!