Just tried it a little, the controls feels weird on my part but they respond well (I should try it on the phone rather than the tablet), the graphics are nice, the concept is nice, and I did not yet had any issues.
The cocoonJS relative problems are of course presents (the splashscreen that haunts me in my worst nightmares when I scream I don t want to be touched that way, and the framerate issues at the beginning of the game layout for about 10 to 20 seconds, then it runs just fine), but it is not your responsability.
Tested on a samsung galaxy tab 3 10.1", I d say 4 out of 5 stars personnaly