I got Google Cardboard to try it out. It's OK, sometimes even impressive, but I think VR will forever suffer from the "too immersive and now I want to vomit" problem. TV watching and gaming are social things and VR is even worse than 3D TV with glasses.
Also, does anyone really want to strap a Samsung smartphone an inch from their eyes? Seems less inspired since they started blowing up.
The Microsoft holo-lens augmented reality look the most interesting. Right now they are all too expensive for me and it's only a matter of time till my kids start wanting them. Hopefully the prices come down soon for the serious versions (that they'll inevitably want),