We went to see this rather over-the-top exhibit of Murakami's art. He combines a Japanese manga-like sensibility with business and "high art": they even had a small Louis Vuitton store inside the exhibit that was selling Murakami bags!
My reaction was that the exhibit was entertaining, but completely overrated. Murakami will not be remembered in 100 years, other than as providing some entertaining art.
A few of his pieces (both sculpture and video) are very explicitly sexual, which was odd. Many visitors had brought young children to the exhibit, and when they got to the room with those sculptures, you could see their faces suddenly change. Other than that, there wasn't anything particularly shocking about the exhibit.
The Brooklyn Museum itself is a wonderful building in a beautiful location.