Based on the article, it looks like she spent about $1600 in total between the blocks and other items - not much savings there. Creative, sure, but I don't know how practical it is for most people.

Also, the article mentions that she wasn't allowed to install anything that had a door or reached to the ceiling. To me that sounds like a fire safety thing rather than a random rule (although I'm not an expert, so who knows), which makes this block wall questionable at best. I get wanting some extra space, but is what she got worth the safety and/or lease violation risks?