> and Netflix is no great shakes either

And this is mostly because Netflix wants to hide the true extent of their library.

Hulu just had a recent, awful re-design too. They cover in-active thumbnails with gradients, you can barely see anything.

Apple TV (which I like as among the best) also has a ridiculously unergonomic remote and very confusing UI (do I want to press "menu" or "home"? And now the TV app is 'home' by default, it's even weirder...somehow, even though I know I think how it works, I always seem to press the wrong one.) And no picture-in-picture either, though their processors are plenty fast enough to support it. But their standard built-in TVML-based interfaces are functional, if a little boring, and the UI is responsive. And hey, at least they aren't showing me ads in the UI or tracking what I watch. But still, lots of little problems.

So much room for improvement here, by everyone.

What do you mean by "Netflix wants to hide the true extent of their library"? Why would they intentionally create a worse user experience?

Because Netflix, unlike say HBO, bills themselves as a general source of entertainment, a place you can always go when you're bored to find new content. While somewhat true in the beginning Netflix today is increasingly leaning on original content because most other big players realized that they could cut out the middle man and still be profitable. Netflix's library today is basically their original content along with things you could find in the bargain bin at your local Best Buy which is a much worse value proposition than "your one stop shop for movies and TV". So their UI is designed to make their library appear larger than it really is.

Because their library gets smaller and smaller every year especially their library of non-Netflix produced content.

Prime video UI is really good on iPads and iPhones. And it has a much better video selection for kids. I wish they release an Apple TV app finally too.