I HAD to do it!!
She even has the template you can download!
Let me just say that my wall is FAR from perfect but the great thing is you really can't see the imperfections unless you really get close and stare for an awkward amount of time.
Nobody looks that close... except for maybe your mom... and your sister... but that is only because they are trying to figure out how you did it so they can copy you! Don't let the fear of imperfection stop you from doing this!
You will love it!!