Even a casual fan of Warhol will enjoy this museum. Its seven floors of exhibition space contain Warhol's art, personal memorabilia and special exhibitions. As you wander through each floor, you really get a sense of his aesthetic and his obsession with pop culture.
I visited during the Marilyn Monroe retrospective. I enjoyed the mixture of media - the photographs were especially interesting to me. I also really loved the interactive "Silver Clouds" room. Its like the best pillow fight you'll ever have,
Overall, it's a great museum, though if pressed for time, I would head to the Natural History/Art Museum over this one.