4 stars: Good concept, but not as polished as the Android photo spheres. Those are not 3d, but are more than just a panorama (up/down is included). It would be awesome if we could take multiple photo spheres in approximately the same spot, and let the algorithms reconstruct the 3d cardboard view. Especially if it can use existing 360 steradian photo spheres.
3 stars: Sadly next to useless without a "Share to YouTube VR" function, to publish the photos. It would have been the killer feature (with sound of course). Some guy figured it how to do it manually more than a year ago (Google for "Cardboard camera to YouTube 3D panorama") but it's a too complicated process to actually perform.
3 stars: This app is nice to see and hear what you were doing in the past especially when using a VR viewer, but when you use "free up space" on Google photos it gets rid of the photos. You can get them to show up again, but there is no audio. It makes me not want to use it.
5 stars: Super great! One of the best uses for Google Cardboard. I wish the sharing feature had an anonymous option and that the image selection interface was a little faster (more images, like on iOS), but those are my only complaints! Best thing to show a friend!
5 stars: A great little app to get the flavour of being somewhere. As a request to developers, is there a plan to add a Settings config switch to whether to launch in Cardboard viewer or Daydream (or at a push possibly even GearVR)?
5 s...