I think the main mechanic is cool and can probably be used for some crazy levels. I have only played the first couple of levels as I find the game pretty hard to control.
The camera would feel better if there was an option to unlock it, so you can move around with it freely, aswell as rotate it with the mouse.
Also I find the control of the characters pretty clunky as you have to drag the timeline forward to continue the chain of actions. I think it would be cool if you could plan out the route in one go, and then simulate to see if it works or not. IE mark walk to one point, then jump, then walk to another spot without having to drag the timeline.