The downside to this system, as others have pointed out is that you really hear what the recording is like. Many, many recordings sound flat and unbalanced. But—when an excellent sound engineer has been in charge of recording a stunning performance, it's simply magical.
And one other thing... The ML 11As have the capability to use Anthem Room Correction (ARC). Before I ran this software on the speaker I had an annoying hump around, maybe 100Hz, possibly lower. I know that it was in the woofer range and not the panels. I suspect it was a resonance in the bay window near the speakers. After I ran the software and downloaded the custom filter that hump was gone. Absolutely fantastic technology. I have an electrical engineering degree, so I understand how they did this and think it's a superb solution.