This document summarizes feedback from users on the 2011 UK Census, including what went well, what went less well, and lessons for the next census in 2021. Key highlights that went well included free and open access to census data, a good consultation process, and bulk delivery options for data. Lowlights included delays in releasing some data, quality control issues, and inconsistencies across UK census offices. Lessons focus on improving consultation, quality assurance, meeting deadlines, and delivering consistent outputs across the UK. Users request accurate and timely data, a consistent database, and improved coordination for the 2021 census.