I thought it was a nice game. The format made you think about what do and I had several moments where I was thinking "Speed Up!" when my little guy wasn't going to make it to the plug in time.
I agree with the previous comments that a fast forward button would be nice for the levels where you have completed everything and are just waiting for the guys to march to the final folder. I also think a pause menu with a "sounds" option would be helpful so you can walk away from the game and come back later as well as have the ability to adjust the volume.