So I got myself the Quest 2. I'm not a heavy VR user. Last time I used VR was when the Vive was released. So I skipped one generation of VR headsets. This is the 3rd gen.
The original Vive had 1080×1200 per eye. Quest 2 has 1832×1920 per eye. So the viewing experience is obviously superior. Adoption of VR will all depend on resolution. Seeing the world in low-res is a turn-off.
The 1st gen VR required some setup and was tethered to a computer. Quest 2 in contrast is untethered, the compute is on the headset itself. It's certainly much more convenient to use now that we are spoiled by our mobile devices.
The big leap of Quest 2 is the controllers. The controllers are designed in a way that it captures the movements of your index finger, thumb and other fingers. This allows for more expressiveness in interaction. This leads to a stronger feel of being immersed.
The Quest 2 also seem to synch up well with the physical environment. So it gives VR sets a kind of permanence that we expect to find in reality.
I also like the fact that there's a camera so that you can see the world mingled with VR. It's grainy just like the Vive, but it's nice to see VR artifacts composed with the real world (i.e. otherwise knows as AR).
My verdict is Quest 2 is a nice gadget to have. I expect it to be useful in travel (when we eventually can do that!).
Ultimately though, people will want higher resolutions as well as augmented reality. We are half-way there.

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