I've tried the HoloLens, and it's not bad for what it does. The narrow field of view is the main limitation. Putting in a greyscale filter to dim the real world makes the inability to write dark tolerable. It's amazing how much hardware they crammed into a lightweight, wireless headset.

The VR headsets, on the other hand, are still about as clunky as they were in the 1990s. The head tracking is much better, and the resolution is a little better. They're still too heavy, too bulky, badly balanced, and need cables.