Seems like it is primarily scraping content from the USPTO search (http://tess2.uspto.gov/bin/gate.exe?f=login&p_lang=engli...) and being monetized by trying to sell their own legal services? Maybe I am missing something.
I am interested in seeing how (if?) they implement that. A mark is more than words; It is also the colors and shapes that comprise the mark. I wonder how they will determine whether a mark is similar when someone picks a logo that looks like yours.
It doesn't seem like their claim of "Search all U.S. trademarks filed since 1870..." is correct. Trademarkia doesn't have the mark that I filed in August, but it is on the USPTO website.