Yeah, it adds speakers above you. It sounds dumb, but even crappy speakers really did make our sound more immersive.

That said, we moved the TV to another room and decided against installing Atmos speakers there... So I guess it's not compelling enough to really care. A good 5.1 setup is enough.

Yeah, it's really not much meaningful benefit over 5.1.

If you want cool effects in a war movie of a plane flying by overhead, then awesome.

But in most television and movie scenes, the sound is coming from a circle around you on the ground.

Putting another 2 (or 4) speakers on the ceiling isn't usually going to make much of a difference. It's truly just diminishing returns.

For the war or action movies where it does, my advice is just to go see it in the theater.

Weather effects are pretty immersive that way, too. But most scenes are indeed pretty flat.

Atmos has height channels added to the audio track. So you'll either need speakers in your ceiling or a setup which tries to emulate that by bouncing the sound off the ceiling to really benefit from it.