I ordered some, it came wrinkled and the company told me it's a common problem. I ordered some more, it was old school paper that I had to paste myself; not having that. I found some more I liked; it cost $400 for one 5x10 wall--not happening. So in the meantime while I hunt down something I love and basically puts itself up I ordered some removable decals from Etsy for about $30.
Before………oh so inspiring.
Going up--it literally took me about 20 minutes. I'd step back after a few, fix crooked ones, change the places of a few to fill in gaps, and not lose it (which I'm sure would have happened with wall-paper).
After. It's a pretty simple transformation, and will do just fine for a while.
Also--it's really hard to take nice pictures when a toilet is involved.