A review count is one input, not the whole picture. The Saskatchewan Real Estate Commission licenses the agent rather than the review platform, so a licence check through the Commission's public registry is worth doing alongside reading the reviews themselves.
Reviews that are dated, specific about the situation, a downsize, an estate sale or a relocation, and consistent across more than one source tend to say more than a raw star count on its own.
Joel is happy to put a prospective client directly in touch with past sellers on request. Get your hand-reviewed valuation from Joel Dyck.