>>310460097
Valve helped develop the HP G2, so it has the same speakers and appears to have the same build quality. 

It's just locked at 90hz, slightly smaller FOV but higher resolution. And some 

https://youtu.be/E-zsuoztXWU

G2 Reverb Tracking
https://youtu.be/53Gg7Q0C6SU
https://www.youtube.com/watch?v=M4sXgxiBZ6U