The example chosen to persuade you may not resemble the ordinary case.

Persuasion runs on best cases. The success story, the dramatic before and after, the customer who did unusually well: these are selected precisely because they are unrepresentative, and they crowd out the median outcome that would actually predict your experience. Nobody is obliged to advertise with their average, so the ordinary result stays invisible unless you go looking for it. What you are shown is a sample of one, chosen by someone with an interest.

When a vivid example convinces you this week, ask what the typical outcome looks like. Seek out the unremarkable reviews before deciding.