I remember reading this article a couple months ago. Here is a quote:

This operating system is supposedly built around ads; we know how that sounds, but advertising is also prevalent in other TV software platforms including webOS and Fire TV OS. The Trade Desk emphasises a user experience that delivers “better cross-platform content discovery, personalization, subscription management, and potentially fewer (more relevant) ads,” so we hope that the importance of ads doesn’t detract from the user experience.

If this is actually true, there is no reason to consider Sonos. Especially at the super premium price of $200-$400. That makes the Apple TV look cheap.

I have been using Nebula for years and it has replaced most of my use of YouTube. Whether it is worth it for you or not depends on what you watch. You can see what content is on Nebula without subscribing to get an idea of what is there.

The biggest problem I have with Nebula is that it is advertised as a “creator owned” company, but that is not actually the case. Here is a blogpost that goes into more detail about that. That being said, from what I am aware of, Nebula still pays creators more than YouTube per view. I just wish they were more transparent about their business.