I use a HP Reverb G2, with X-plane and Microsoft Flight Simulator. I can read the dials (yes, even the tiny ones) just fine with the built-in controls. But most of the stuff I do is programmed with keyboard shortcuts/my HOTAS flight controller.

I would not be able to go back to standard 2D-view-of-3D experience again after getting used to VR. Can't even effectively look around your shoulder, and a bunch of other things.