Crossing Fingers

We have been working on our walls for a good month now. It all started back in July when I decided to apply wainscot, in my kitchen, as a backsplash. After that project was finished, the walls really needed a new coat of paint, so we did that. My hallway and kitchen area are open, so now I had to do something with the hallway.

I found this idea while searching the internet.

It looks easy enough. So, tomorrow I begin. If all turns out like I plan, I will post the final results with easy to follow instructions on how to obtain this look.
I have been filling and sanding "very" rough textured walls for about 4 weeks to get the look I hope to obtain. Not sure what I am going to do if it doesn't turn out???