I looked at a teardown. The 4" woofer motor looks massive. The driver looks well-thought out as well.

I haven't had time to read the review you posted but I remember reading that the active sound management is transparent to the user. The pod is always listening and adjusting its filter coefficients. No matter how good this thing sounds, I'm not letting it into my home since its always listening.

Any idea what the spec'd SPL is? Is it stereo?