Most rooms don’t need acoustical treatment.

Why?  Because acoustical treatments presented are in virtually empty rooms. Unrealistic.

Not sure if you are making a statement or advising others. But you have also provided the reason why they are not needed, as it depends on a case-2-case basis. Yeah, your room is furnished and does not need treatment. My room is purpose built and was empty to begin with. A simple change in moving couple of treatments made profound positive changes in my case.
BTW, most forums also don't need duplicate threads. You have another thread on the same topic. Might want to remove it.

@patrickdowns,I have to agree with you.OP is clueless. But I think he is new on the forums and might be trying to "get attention".

@patrickdowns,

Is this yours @milpai?

That is indeed my room. I have been happy with the GIK products and the improvements they provide me. Just be careful that if you make changes to speakers or speaker placements you need to adjust them. I learned that a bit late after I changed my speakers. The new speakers sounded good. But after getting the panels in the correct spots "opened" up the soundscape. The speakers no longer seem to cast the music. All music seems to come from around and behind them. I think I have the panels in the correct spot now :-)