The video is, obviously, too long (20 minutes???). And the song remember me the movie "Madagascar" =)
And, only 720p? for a 3D engine? O_o
The messages are so unprofessional. They jump in the middle of the screen, or in the bottom, with a stupid swinging...
The Active shade, ad the beginning, is so choppy... we are able to see some 100%white frames (min 1:05)
It's obvious that they tried to copied the Corona VFB: same color for the background and the icon, same icons position, same TABS etc...
It means that Corona is doing a goo job if, now, they are trying to copy it ;-)
What I like is all the volumetric stuff: fast, easy, intuitive. Also caustics. But it's in Corona todo list ;-) for 1.8
For the rest, it's years behind Corona.