They sound pretty good. This project is obviously SM's attempt to steal some of the white-hot attention from Big Bang, though. SM is generally very saturated in highly polished pop acts with a bit of an R&B feel. They're not known for being super urban, but the current Korean music trend is for digi-hiphop/hippop. If they're going to keep up with acts like Big Bang and Wonder Girls, they need something like this. I hope they do well.