Google Cardboard is a Terrible Experience
Every time I ever try to do anything with Google cardboard - apart from the demo itself - the entire thing is a horrible experience. Take something that seems like it should be relatively common: VR video. Go into cardboard (the app), request the VR video channel. Find a video. Start that video. THEN hit the cardboard icon that will put it into cardboard mode. Then pause it. Put my phone into the cardboard-compatible viewer and hope it doesn't touch anything on the way in....