What is the opinion of Reddit about the 3M Corner Maker (CM100MB),Black?

A total of 1 review of this product on Reddit.

I’m in the process of building a simple but sturdy corner maker, similar to the 3M Corner Maker (http://www.amazon.com/gp/product/B001949G2E), that will add more space on my L-desk where the keyboard floats right now.