Why did Sidney and Beatrice Webb visit the Soviet Union in 1932?

Sidney and Beatrice Webb visited the Soviet Union in 1932 primarily because they had become thoroughly disillusioned with the prospects for the Labour Party and political progress in Britain.1

Upon arriving in the Soviet Union, the Webbs were deeply impressed by what they observed, famously stating that they "fell in love" with the country. This experience led them to spend the following three years writing their final major work, Soviet Communism: A New Civilisation? (1935). In this book, they appeared to move away from their long-held commitment to gradual social and political evolution—a core tenet of the Fabian Society—in favor of the model they encountered in the Soviet state.12