@VonMagnum could give you a more detail run-down. He has like a million Atmos speakers everywhere. Probably looking for some ways to install speakers BELOW his seating.
Personally, I would much rather have 2 to 6 ceiling speakers for Atmos/DTSX/Auro3D than just ONE overhead speaker.
If you can install one overhead speaker, why not install 2, 4 or 6 overhead speakers?