I have to say that I dislike every one of those features.
Probably MX Browns - One of my least favorite keys.
full color change LED back lit - Dislike backlighting.
takes two USB ports to power it - Rather have one.
USB Hub - Don't want extra things sticking out of my keyboard.
Headphone/mic pass through - Don't want extra things sticking out of my keyboard.
around $200 - I could buy two nice mechanical keyboards for that much .
I guess that's why I ended up with a Filco..
Though the one thing that's missing on a lot of mechanical keyboards are high quality dedicated media keys.
I also like my keyboard to weigh a lot and be easily moddable (unlike Filco) and have a detachable cable (unlike Filco).
We really need a plate mount keyboard with easily swappable switches for easy replacement or people who get the brilliant idea to swap the vowel switches for MX green or to make just their "gaming" switches mx red.
)