Experienced only: What have you done with room correction?

I've been using Anthems ARC for several years (as a dealer and consumer) and as long as you have the expectation that its not a cure all to the system it is a great tool to use. Getting into the advanced adjustments allows for fine tuning to my ear on my system. I also use REW to measure the before to see what the in room response is. 

I've used 3 different REQ solutions in my A/V systems:  Dirac Live, Audyssey MultEQ XT32, and ARC Genesis. I consider them all effective, to varying degrees, with respect to reducing room colorations and providing a more convincing audio experience, at least to my ear.

However, REQ is intended to remediate only room anomalies. It is not a panacea for speaker or source aberrations. And I've always found further improvements to the sound are possible via manual adjustment downstream. YMMV

I had a dedicated music room built. 

For somebody who does without even tone control, obviously automatic room correction is out of my league. Went with building a dedicated listening house instead.

I’ve heard TacT (now Lyngdorf) completely transform a couple big $$$ systems to the point where you wouldn’t wanna listen to the system without their RC.  Avoid it at your own risk.  The ONLY reason I didn’t incorporate it into my system until now is because I was writing equipment reviews and couldn’t use it because it wasn’t appropriate for reviewing purposes.  Now that I’m free I’ll be all in for adding some kinda RC.

@soix like a TDAI amp, or what?

people in apartments, or homes that are not easy to change things in, may only have limited passive options… and RC becomes the only viable option.