I am tempted to say that this is an app designed by a programmer.
I say this as it has 'features' only a programmer would put into it.
e.g. Draw a shape, Then choose another tool to select it, select the object and when it shows up with the checkbox pattern you press space on the keyboard.
WHY? Why cant I just draw the object, have it autofill with the current colours etc and switch off the fill if I want to with a simple checkbox. Perhaps similar to how Xara does its drawing.
It just seems like an awfull lot of steps for a simple shape.
As a programmer myself I never relied on my own designs for the interface usage. I always got third party input as I am too close to the project and what makes sense to me did not always make sense to others.

I really want to like this app. Perhaps I am just not understanding it.
I will persevere with the demo anyway as I really want to put a simple animation together.
Cheers
Mike R