The Miracles are a strange, lovely beast.. they're so effortless and polite while being very agile and robust. The presentation is a unique mixture of being highly involving.. but laid back at the same time. At times, their smooth, virtually inoffensive sound has me thinking they're just raring to 'scream' and belt out something ridiculous cause of their incredible technical abilities. They're simply unable to 'break a sweat' no matter what you throw at them. If I didn't know before hand that these had BAs, I would've thought I was listening to one of the finest (multi) dynamic driver IEMs produced. The natural texturing & timbre is that good.. completely free of grain or unnatural decay.
As I've said before, they're a mix of all the best/most unique/favorite features from my other phones: the RE262's airy, midrange liquidity, the Silver Bullet's massive soundstage, the HD580's tinge of warmth and smoothness, the Quad's nimble, bottomless, heavenly textured bass, the e-Q5's clarity and control, and the HE-500/Paradox' freakish microdetail, balance, accuracy, and timbre.
I still don't think they'd be for 'everyone' cause they certainly have a (very subtle, refined, sophisticated) signature that might be too polite for some.. but when it comes to technicalities, sheer listening enjoyment (that's non-fatiguing), and immersiveness.. they're incredibly hard to fault, IMO.
Easily among the best $800+ I've spent.. on anything.
I've owned the Miracles for a few months now and it's difficult for me to say that I've heard anything "better" than it. I haven't really had any serious time with any ortho's but out of all the top teir dynamic headphones that I've owned, it's hard to say that the Miracle isn't near the top of the pile. Like you said, the Miracle does have a more "sophisticated" signature considering they are so balanced. I guess the biggest difference you could say about the Miracle compared to an HD800 / T1 is that they can't quite show off the sub-bass frequencies. Honestly from what I remember, I don't even think my LA7000 had as much sub-bass as the Miracle. Obviously it was a bassier headphone but I don't think it reached as low in the bass frequencies.