I've seen every Warhol exhibit I could since the retrospective at MOCA in LA in 2002, including the recent exhibits at the Whitney and the Tate, as well as the Banksy/Warhol exhibit in Amsterdam.
This exhibit is smaller than the LA retrospective but not to be missed, as it presents the complete series of many of Warhol's most outstanding works: a complete Mao, a complete Marilyn, the complete Muhammad Ali series, as well as a complete set of the very rarely seen Endangered Species series. And a complete Beethoven quartet, as well as a wonderful Ingrid Bergman triptych.
It also includes his diamond dust icon series, ending with the absolutely fabulous "shadow" self-portrait. And, the complete Cowboys and Indians series. Especially interesting were his sketches and drawings from the 50s when he was working as a fashion illustrator. Don't miss the "Tattooed Lady" with his phone number in Murray Hill advertising his services.
The gallery on two sides of New Bond Street is a lovely space and the works are beautifully exhibited. The staff were incredibly welcoming, and the man we talked to was brilliant. I learned much from him in our hour or so encounter. He was welcoming and unpretentious, while being immensely knowledgeable.