If there ever was a role model of what not to do, this is it. Sign-up is difficult — you can sign up using Facebook on the desktop, but then you have to use "forgotten password" to set up a password, then go into your Daydream VR mode to type your password using a difficult interface. That's difficult indeed when you use a password manager with strong passwords! To load your own video, you have to put the video file into a specific folder (you can't just use the normal Movies folder), and furthermore name the file according to the type of 3D movie! Unlike other apps, Littlstar cannot figure it out by itself. The interface to this app is so badly designed that this isn't worth even trying.
Bad interface. Not smooth at all.
Since the other ratings were clearly left by the creators and their mates, I thought a user review would be worthwhile. The environment in the viewer is nice, is functional, it looks good, but honestly, the content I've seen before. It's not engaging and it's just showing me a lot of the same things 10 other less pretty viewers are. Interactive content is the reason for a daydream and simply pointing and clicking to watch some 360 videos doesn't justify having this strapped to my head.