I've been to Mike's a couple of times. His room is incredible and I've never experienced anything that comes close. You will never comprehend how much information there is in recorded music until you experience something like his system. The other important takeaway is how important the room itself is.
Yes, when you first see the speakers, it's physically imposing. They serve a purpose, and that purpose, along with the room itself, everything in it, and beyond (electrical) is to let as much of the music through as possible. What comes out is incredible detail, imaging, and clarity. It's hard to describe, but it's like having only ever seen grainy black and white television for your entire life and then experiencing an Imax screen for the first time.
Mike is a very kind and gracious host and loves to educate and share his knowledge and experience. I walked away with some concepts that I was able to apply to my modest system that improved my listening experience and didn't cost anything.
He has an incredible music selection as well.
I really don't understand Amir and the ASR cult. They seem to think that anything that costs a lot is "bad" or a waste of money and that anything cheap that has what they consider good measurements is "good". They seem unable to set aside that bias and use their ears and brains and heart and just listen and enjoy.
There are a select few people in the world that have a passion for something and pursue it in a way that puts them at the cutting edge of what's possible. That's how I think of Mike.