But I'm not convinced that they're ready for the mass market yet. Not because of any failing on their part, but because I think that they need games, and controllers, specifically designed to work with VR.
You can't use mouse/keyboard well if you can't see the mouse/keyboard. UIs that float at the bottom of the screen feel very odd when you move your head around and they stay at the bottom of your vision.
We're going to need a year or two of people producing iterations of new interfaces before we have something that feels really smooth to the average user.
(In the meantime they're great fun to play with.)