Oh man, I'm definitely going to give this a shot when I get a chance. The original Doom and Doom 2, plus a number of mods should make for an amazing experience!
One thing to note about this, the Index controls definitely need to be updated to allow for Keyboard/Standard Controller/Joystick input bindings to make this easier to use. Once the correct bindings are mapped to the Valve Index, it's DEFINITELY going to be the go controller for playing this.
maybe it's better in person, but this video is makin me extremely nauseous... I don't really care for the 3d gun models, but everything else looks okay except the razor straight line of gun fire spread... super excited to play it soon though, I still remember the exact moment I first layed eyes on Doom, back in the computer lab at school