Question: Among the stopped businesses in San Tan Valley city, list down the user ID and review length of who had great experience.
SQL: SELECT T2.user_id, T2.review_length FROM Business AS T1 INNER JOIN Reviews AS T2 ON T1.business_id = T2.business_id WHERE T1.city = 'San Tan Valley' AND T1.active = 'false' AND T2.review_stars = 5