I tried it, but had tons of serious problems. here are a few:
Instead of being able to draw a line how I wanted, it would draw "zig zags". Like, when I tried to freehand a 45 degree line, it would draw stairs. Only when I moved the mouse very fast would it give some sort of angle, though still not a free hand drawing, it was a bunch of segments of lines attached together.
I tried to get rid of everything I had drawn but could find no way
Tried to select a piece of the canvas but then my mouse because the area I selected and I couldnt get rid if it.
After I selected another tool, it still tried to make selections, I couldnt draw any longer.
Random white lines kept being drawn on the drawing area at times.
Drew a box, then couldnt do anything but draw boxes, even if i selected another tool.
Anyway there was some more stuff, and I don't know if it's my computer or I was just not using it right but I can't see my self using this at all with so many problems. I really couldnt figure out what was going on at any point.