Online Portfolio Critique

I came across this ad on a design magazine site. Don't know anything about it, but looks as though it could be useful:
www.critiquemybook.com
"Critiquemybook is the very first on-line service to critique portfolios. It's a place to go to get an honest, educated evaluation of your book. Make sure your work is the best it can be before you show it to the world. For more information check out our site. We look forward to reviewing your work."