Only people who actually trained with a coach can review them, and the review unlocks after the sessions are done. Next to the reviews you see their record: how many athletes they have assessed, how many came back for a retest, and how long their athletes stay.
Film three clips on your phone and your coach takes it from there — the same assessment, the same eight measures, the same program comes back. It also means you can pick the right coach instead of the nearest one.