I have a pretty nice setup of Sierra 2EX's for my L/R, Horizon for center, Pol RTi A3s for surround, RSL C34E for Atmos speakers, Rythmik FV18 paper cone for my sub.

Would the upgrade to the Sierra Towers with RAAL be a defining upgrade? It's super expensive at $3k, so I am kinda doubting it will be an amazing upgrade.