I just tried out the Vive at a friends house (or Waifu, as he calls it
) and I must say it reminded me a lot of my Samsung Gear, excluding the controllers of course. I think it's great and the lenses are a bit better than the ones on the Samsung Gear, although they still have the same problem regarding chromatic aberration.
Being able to interact with your environment is an absolute game changer. At times I would be picking things off from a shelf only to hit my leg against something in the room, thinking it was the object inside the VR simulation. Also, seeing the highly detailed controllers in your hands in VR makes the experience super realistic. The responsiveness of everything is quite astonishing. There was just one small issue and that was the trigger on the right controller. It didn't go 100% all the way out again, which I noticed in this one minigame where you make balloons (they didn't always get released when using the right controller). Perhaps this can be fixed with a little bit of silicone spray (did that with my DS4 controller at launch and it's worked flawlessly since then).
We ran this off a PC with an i7 2600 and GTX 780 and performance seemed to hold up quite nicely. We were also in a tiny room that was I think a little bit smaller than optimal but it was fine.