I liked the trial-and-error aspect of the level (unless you're observant), and the slightly challenging gameplay, but while it's a good level, it's not one of your best. I think it lacked a little design and architecture. So my rating is 4 stars (I changed it from 5, so it's not appearing in my comment).
Very clear. New users definitely can be more familiar with the important feature of this game after playing this level.
