I had a look. I'm not immediately convinced it's as revolutionary as the iPhone. It's a fancier Quest but the battery is in your pocket rather than on the front of your face. Guessing the internals are similar spec to a regular high end iPhone or iPad.

It will almost certainly feel a lot slicker than the Quest, which isn't hard because the Quest feels like several layers of jank sellotaped together, but I don't think it's $3000 slicker.

Saw an article that claimed there were issues in a demo, but they weren't allowed to film and that Apple reckoned that would all be fixed before release. Smart money would be on those issues being present at launch.