Although the concept behind Cornerstone is beautiful, Chiang Hsien-hui admits that changing a person is very difficult. Many people couldn't handle the regimen and difficulties of living together, and left. But fortunately others have gradually joined to replace them. Others have gained faith in the vitality of life here, and gone back to school or taken other jobs.
角石的理念極美，然而江嫻慧不諱言，改造一個人何其困難，許多人受不了集體生活的規律和工作之苦，走了，所幸也陸陸續續有人加入；還有人則是在這裡重拾了對生命的信念，得以重回學校或職場。