The Court of Appeal reversed the DJF placement due to a lack of evidence of benefit to the minor. Although the probation report asserted that DJF was the best placement to address the needs of the minor and it can be presumed that assertion was based on some knowledge of the DJF, the “unexplained and unsupported assertion of possible benefit is not evidence of reasonable, credible, and of solid value” from which the juvenile court could make an informed decision. Remanded for a new disposition hearing.