I read these stories in the early eighties as a child, and they have never left my consciousness. They're gripping, sinister, disturbing and yet also greatly uplifting. You never forget having read Dahl's work, especially the more adult work. It's uniquely compelling, beautifully written stuff and should rightfully take its place amongst the established greats of twentieth century literature.
They transferred passably well to television in the 1980's as Tales of the Unexpected in a very straight up and slightly cliched manner. However, Wes Anderson's adaptations are superb. They take all the language, style, wit and intelligence of Dahl's writing and combine it with his own wit, style, intelligence and visual language. The amalgamation is deeply entertaining, intellectually fulfilling and wholly satisfying. As befits Dahl's stories, the film is unusual in the telling and quite unsettling. I can understand why some might find it difficult, it's better for it. I absolutely love this.