Hmmm. It just told me that BRMC is near Black Rebel Motorcycle Club. Interesting. It'd be more helpful if I wasn't already familiar with all the bands near the ones I like. It also seems to pay a lot of attention to incestuousness in bands.

I'd say that this is probably not too good for those trying to find more music in an area they're already familiar with. Those trying to find music that they're not familiar with would probably benefit, though.