That's the model I wanted, just for the sound upgrade. It comes with gold speakers and a black back. I'd have been happy with any color for the sound upgrade.
But, Best Buy had those in the warehouse, refused to stock or order it for me unless I paid for it outright, whereas the gold Sprint model only came with an extra accessories gift card just for that day worth $50.
For $50 I instantly went from not seeing the point of gold to agreeing that it was the best of all possible colors!
Exercised my black tie trade on the LTEvo, the manager agreed to discount his best earbuds in stock to make up for their idiotic policy, so I walked out with the M8 and Bose IE2 buds spending exactly $74 with tax + $7 left on the gift card.
Within an hour I was satisfied that everything worked, and within another, I was s-off, rooted and had flashed the Harman Kardon firmware update for my DAC. Added Viper4Android to sound shape for the earbud deficiencies and have been happy since.
It really sounds excellent.