I was very disappointed by this feat not doing (something similar to) what the Pathfinder version does, which allows you to add Strength with Charisma for intimidate checks.
Personally, I'd like to suggest changing the feat to be:
"In situation where you can physically menace the target of your Coerce or Demoralize attempts, you can replace your Charisma modifier with your Strength modifier and ignore the penalty for not sharing a language."
The reason why I've come upon this is that I've made a Dwarven barbarian who wants to go into intimidation, since the class is set up for it. But the class ability scores don't really support it. Barbarians don't really have cause to invest in Intimidation, and outside of intimidation charisma isn't normally associated with barbarians. I feel you should be able to replace the bonus/penalty you would normally have from charisma with strength.
I know I can invest some of the level ability score increases into charisma, but I shouldn't have to on a barbarian where being charismatic doesn't fit the character. And they should be able to be intimidating without being good at talking to others.
Please! Pretty please! Make this change!
PF1 Intimidating Prowess doesn't replace Cha with Str, it lets you add the two modifiers together. Much better (unless you've got a negative Cha mod).
I'd thought I'd altered my post to reflect that, as I went and reread the feat before I posted...but I guess I didn't. Oh well.
I don't want the bonuses to intimidate to scale out of control, so I don't think we can expect them to add two ability score modifiers, but we should be able to replace it. Especially since Rage no longer provides a strength bonus, but just a damage bonus. It would make Barbarians as good at intimidating as charisma based characters like Bards and Sorcerers, but relying on muscle to do so.
On p 142 under Key Abilities it says that the GM can just decide to let you use a different key ability if it is appropriate. I think this is a good change and should be encouraged to get a lot of general use. Of course this whole game appears to be locked down pretty tight for PFS so I doubt it will.
A GM shouldn't have to "let you" do it. It should either be the default function, or behind a simple feat.
I didn't even really want to address that the PF2 version of Intimidating Prowess requires you to be an Expert at Intimidation before you can pick it up. Basically the 18 strength guy has to wait until level 3 to be physically intimidating.
While all the cool kids pick on the hulk and scare him off with their charisma.