I have tried every major VR setup so far, including the latest by HTC and Samsung. Neither of which are as good as the Oculus Rift.

The thing that really sold me is the Head Tracking; it's better than anything I have ever used, and I've been using TrackIR since it came out in 2001 or so. I've used ED Tracker and Freetrack. Nothing is as good as the head tracking for OR. In fact, its really infuriating because the immersion is so incredible with the OR, but the resolution still has a long way to go. And I mean a long, long way. I just used the newest High Res Samsung and HTC sets and I took them back because there just isn't a good enough reason to use them compared to the OR.