That's pretty much it. My previous room was just awful for power, and acoustics, and I took to large and costly audio Elastoplasts.
First a Burmester 948 conditioner that benefitted transparency and 24/7 consistency, but was a liability on dynamics. Then a cheaper Airlink balanced 3kVA power transparency that helped with dynamics but introduced somewhat of a bass thin and edgy sound.
Then Entreq which ameliorated noise issues, no downsides.
Finally the 80kg+ Westwick balanced 8kVA transformer, which seemed to combine the positives of the Burmester and Airlink, addressing their shortcomings, and adding a couple of other advantages as well.
And other than the change to a dedicated Entreq box for my CDP, Sablon cable loom, and here in the chapel a fairly major job of dedicated radial circuit with six dedicated lines to six duplexes in my loft space, that's been my journey.
Switching out the Westwick and not replacing it with another box, conditioner or otherwise, is a pretty major step in context of what I *always* thought was right.