+5 respect for having Bohren & Der Club of Gore and STS9, -7 respect for not having any of the other bands I wanted to find similar music to (9dw, 45, Food for Animals, Mouse on the Keys, Byzar, Artofficial, Optimus Rhyme).
It's an interesting site and its recommendations for the ones it actually did find were pretty accurate, but it couldn't detect any of the obscure stuff, and that's the stuff it's hard to find similar music to without help. The website was posted a long time ago, and the recommendations were pretty bad back then, so at least it has improved, but I still wouldn't see myself using it.