I received my Oculus Rift today, which was quite unexpected since I never received the shipping/tracking e-mail. In fact, I haven't received my Eve: Valkyrie promotional code either, so I haven't had the chance to test it, but once I do I'll report back.
So far my impressions are mixed. I don't have any major complaints about the hardware, as it is more or less what I expected. Everything works flawlessly, but the screen-door effect due to the limited resolution and lenses is still quite visible. No surprise there. I'm a bit disapointed by a glow/glare effect in high contrast scenes ( for example when they display some white text in the middle of a black room ), you see some kind of heavy ghosting / glaring which I don't remember being present in the DK1 ( and afaik, neither in the DK2 ). It's not a big deal though. So overall, good job.
No, the reason I have mixed feelings is on the software side. They created what they call the "Oculus Home", a marketplace inside VR which acts as a central place to download / install / launch VR apps, but in the process they've made all their old apps/games obsolete. I haven't been able to run any single one of the hundreds of the existing apps that were running on the DK2. Therefore at the moment, only the oculus-approved apps ( which most of them aren't free ) are available.
In other words, unless you start paying $$, you have something like an hour of content, maybe more if you count Lucky's Tale, which is a platform game ( so although fun it's not exactly the most immersive VR app you'd be interested in ).
I also haven't been able to find a decent VR player. There's an official one on the store, but it requires you renaming files if you want stereo, and afaik you can't visualize your own 360° videos. It's even worse if you have 360° + stereo videos, I haven't been able to find any working alternative. All the existing ones were made for DK2 and aren't working on the CV1...
So yeah, good hardware, but on the software side I was expecting more from the launch. I hope that will change in the coming weeks, otherwise it looks like Oculus will be in a bad spot.