Complex sentence: Despite the criticism, Rochdale Town Hall was ultimately celebrated as "a source of pride", and its completion prompted celebration and rejoicing; it transformed a "derelict and marshy riverbank in to a huge romantic Gothic plaza".
Split into simpler sentences: Despite the criticism, Rochdale Town Hall was ultimately celebrated as "a source of pride", and its completion prompted celebration and rejoicing. It transformed a "derelict and marshy riverbank in to a huge romantic Gothic plaza".