I'm excited to experience it, work has one on the way. A close friend and client has another, so we'll be experimenting. I think it's exciting technology and I'm eager to see how the notion of "spatial computing" plays out in the next 5-10 years. I'm also always happy to be "that guy trying out the Channels client on any screen imaginable"
Happy to share notes and/or feedback when the time is appropriate.
In the meantime, without an actual client or iPad version running on Vision Pro, we should still have the same access, at least via Safari and the Channel DVR management page. Sure, it's not as elegant as an app, iPad version or otherwise -- but at least that's enough to be able to navigate to live TV, movies and recorded content we'd like to watch inside visionOS. It'll be the same with Netflix content. At least for now? 
