How is Osho seen in the Buddhist community?

Is he considered a great leader? an unusual leader? Does he represents Buddhism? Are his books largely accepted as Buddhist books? The reason I asked is that Osho is (whether you like it or not) very popular in the west, and many people associate him with Buddhism. Once my grandpa came to me saying, "I finally read a book on Buddhism!", showing a book by Osho. So, before giving my personal view I would like to understand the point better. (some of his books are sold in Buddhist libraries!)