Sorry. I just got matched with myself on okcupid.com. Of course being with an exact duplicate of myself might be really nice. Seeing myself from a third person perspective always makes me treat myself better, focused and more driven. Probably other positive things too. We'll skip the "But would you have sex with yourself?" question here. It tends to really weird some people out.
That website seems to have completely missed taking into account the fact that people need to build close relationships with people who are different enough and yet complimentary in all the right ways. How do you gauge that?