I just installed the 1.3 runtime for use with my DK2 and wired razer (xbox 360) controller. It all worked great. You can only get so far in the hardware setup process, but if you click the "skip" button it works great. Although there was no chance to input settings for the camera height, or the IPD. So I assume the defaults are working good enough.
The store/library software works great, and is huge improvement over other systems for VR and launching software. The controller integration works fine with a non xbox one controller. But you do need some kind of controller. You have to press the A button to move past the warning screen when launching apps.
I tried some of the concepts, and the Jaunt app. All work fine. The Jaunt app feels like watching a movie on an OmniMax at the museum.
I noticed an interesting scale issue. When watching the "house party" VR video, all of the people appeared to be super short and small. But if I stood up (I was sitting), all the sudden they were the right size. If I watched them while standing, it looked like they were growing before my eyes. It seems that your apparent eye height relative to others, and your current configuration (sitting, standing, etc..) have a lot to do with how you determine scale, especially of other people.
Anyway, even with the DK2, this software makes it a whole new experience. I can't wait to try the Vive and CV1 when they arrive.