It's a really awesome game. I just completed every level recently. They have enough content to keep you playing for about 2 weeks, but then there is plenty more player content to keep you playing indefinitely. I haven't looked at the level editor myself yet, but i have heard it is extremely in-depth and amazing. I would highly suggest buying it.
Yeah the editor is ridiculous. you can make almost anything. People have made it into a FPS and i've just recently played an angry birds interpretation and it was pretty awesome.
