Wow! Thanks for that. You know, looking at the website for that agency, another red flag--although it's a very nice website--is that one of the tabs is devoted to promoting a book written by the person whose name is on the agency. And, in fact, it's the first book to show up on the home page.
I always wonder about agencies who prominently offer services on their site, such as workshops for writing "the perfect query letter." It seems like a lot of agencies do this.