I'm an advocate for technologies like sbx surround. They are still somewhat niche at this time, but I think a lot of people don't comprehend the limitations of standard stereo audio for gaming and don't understand that these technologies are a way for the game to convey more audio information to headphone users.
The g6 is interesting because it was reviewed on audiosciencereview. It has a level of performance that really would have warranted $500+ a decade ago. Considering that headphones like the hd650 is almost two decades old, it is actually pretty humbling to think that with an hd6xx from massdrop and a g6, you can match end game setups from the mid/late 2000s for so little money.