I haven't heard this product but can't believe it could work in anything even in the same universe as "audiophile" speakers, or even less than average speakers.
Bouncing sounds around the room does not "control distortions". In fact it does the complete opposite. That's exactly why actual audiophiles spend thousands of dollars on room treatment to deaden reflections.
It's the same as those Atmos speakers that attempt to bounce the sound off the ceiling. It's impossible to do that without introducing a massive amount of distortion, also the frequency response of the bounced sound waves is completely screwed even if it works at all. It will also depend on the surface material and the angle of those surfaces, something the Homepod couldn't possibly know.
It's just a misunderstanding of the physics of sound to think this could work in anything close to an "audiophile" way.
Do you put a measurement microphone at the listening location to optimize for that location? Otherwise how could it possibly know where in the room the listener is to align those 7 bounced audiophile signals? That might be the only thing to possibly make this product not a complete joke.
I'd rather have a single reasonable speaker with a T-Amp plugged into a phone than what this must sound like. And that would cost maybe $100, if that.
A silly bound-to-sound-crap speaker locked into the Apple ecosystem, with microphones that can record your conversations in the living room... for $350!! I would literally never even consider buying this product.
Man, I feel more and more removed from the average consumer every day.