L..
We've been there once..and we didn't really like the overboard touristy stuff. It was kind of a dirty downtown, lots of tattoo/piercing shops, sketchy bars, and over-the-top souvenir shops. However, North Myrtle (we stayed in Surfside) seemed much nicer, more family friendly, and less..senior week/college singles like. We probably won't go back anytime soon. We felt too old to be there (27, 30).
But if you're looking for beaches, maybe try the Outer Banks in NC? They're so much more worth it!!