As far as UI/UX is concerned their tvOS app is in a really rough shape. The web UI has a fairly reasonable program guide (edit: for Live TV), while the app doesn't. Also navigation in the app doesn't feel polished at all unfortunately.

I think the Apps are inconsistent, some of the newer Apple ones are great, the computer ones are first tier, but some of the multiple TV OSes are lagging.

I wish there was an open hardware option that was a target for devs to support for projects like Jellyfin but also funded them when you bought it.

What’s a good app for iOS or tvOS? It looks like the official jellyfin app for iOS hasn’t been updated in a year.

It’s workable, but not as nice. I switched back.

I've only used Jellyfin but good enough not to consider switching to Plex.